Abstract: The subject matter described herein generally relates to look ahead energy management and control systems and methods for detecting, incorporating, and leveraging look ahead technology data to improve the performance, durability, and life of fuel cell systems.

Abstract: An impact tool includes a housing; an electric motor including a motor shaft rotating about a first axis; an output shaft used for outputting power and rotating about an output axis; and an impact assembly used for providing an impact force for the output shaft and including a main shaft, where the main shaft is driven by the motor shaft to rotate about an axis of the main shaft. The housing includes a first housing for accommodating at least part of the main shaft, and a support portion that forms sliding friction with the main shaft in the direction of rotation of the main shaft is formed on or connected to an inner wall of the first housing.

Abstract: A power tool includes a first illumination mechanism illuminating a region in front of an output shaft. The first illumination mechanism includes an illumination element generating light for illumination, where the illumination element is mounted in a mounting groove formed by the front end of the first housing; and a lampshade covering at least the front of the illumination element, where part of the lampshade located in front of the illumination element is light-transmissive material, and the lampshade is detachably mounted on the first housing. The illumination mechanism is convenient for replacement.

Abstract: The present disclosure generally relates to a system and methods for managing and controlling emissions produced by a vehicle and/or powertrain, which includes one or more power sources selected from a fuel cell, a fuel cell stack, a battery, and combinations thereof, a processor, one or more inputs, a controller, and one or more emission control devices.

Abstract: The present disclosure generally relates to a system and methods for managing and controlling emissions produced by a vehicle and/or powertrain which includes one or more power sources selected from a fuel cell, a fuel cell stack, a battery, and combinations thereof, a processor, one or more inputs, a controller, and one or more emission control devices.

Abstract: A power tool includes a first illumination mechanism illuminating a region in front of an output shaft. The first illumination mechanism includes an illumination element generating light for illumination, where the illumination element is mounted in a mounting groove formed by the front end of the first housing; and a lampshade covering at least the front of the illumination element, where part of the lampshade located in front of the illumination element is light-transmissive material, and the lampshade is detachably mounted on the first housing. The illumination mechanism is convenient for replacement.

Abstract: A power tool includes a first illumination mechanism illuminating a region in front of an output shaft. The first illumination mechanism includes an illumination element generating light for illumination, where the illumination element is mounted in a mounting groove formed by the front end of the first housing; and a lampshade covering at least the front of the illumination element, where part of the lampshade located in front of the illumination element is light-transmissive material, and the lampshade is detachably mounted on the first housing. The illumination mechanism is convenient for replacement.

Abstract: An impact tool includes a housing; an electric motor including a motor shaft rotating about a first axis; an output shaft used for outputting power and rotating about an output axis; and an impact assembly used for providing an impact force for the output shaft and including a main shaft, where the main shaft is driven by the motor shaft to rotate about an axis of the main shaft. The housing includes a first housing for accommodating at least part of the main shaft, and a support portion that forms sliding friction with the main shaft in the direction of rotation of the main shaft is formed on or connected to an inner wall of the first housing.

Abstract: The present disclosure generally relates to monitoring and controlling emissions produced by a fuel cell or fuel cell stack in a fuel cell engine of a vehicle and/or powertrain.

Abstract: An electric tool includes a tool body and a clamping device configured to clamp an operating attachment. The clamping device includes a moving member, a biasing member, a limiting member, and a switching mechanism. The moving member is sleeved on the output assembly and has a locking position where the operating attachment is locked. The biasing member is configured to apply a biasing force to the moving member to keep the moving member in the locking position. The switching mechanism includes a toggle portion and a driven portion. The toggle portion is configured to be movable toward the tool body and drive the moving member to move in a direction away from the tool body to disengage from the locking position. The biasing member is configured to apply a biasing force to the driven portion to keep the moving member in the locking position.

Abstract: The present disclosure generally relates to monitoring and controlling emissions produced by a fuel cell or fuel cell stack in a fuel cell engine of a vehicle and/or powertrain.

Abstract: The present disclosure generally relates to a system and methods for managing and controlling emissions produced by a vehicle and/or powertrain which includes one or more power sources selected from a fuel cell, a fuel cell stack, a battery, and combinations thereof, a processor, one or more inputs, a controller, and one or more emission control devices.

Abstract: The subject matter described herein generally relates to look ahead energy management and control systems and methods for detecting, incorporating, and leveraging look ahead technology data to improve the performance, durability, and life of fuel cell systems.

Abstract: An electric tool includes a tool body and a clamping device configured to clamp an operating attachment. The clamping device includes a moving member, a biasing member, a limiting member, and a switching mechanism. The moving member is sleeved on the output assembly and has a locking position where the operating attachment is locked. The biasing member is configured to apply a biasing force to the moving member to keep the moving member in the locking position. The switching mechanism includes a toggle portion and a driven portion. The toggle portion is configured to be movable toward the tool body and drive the moving member to move in a direction away from the tool body to disengage from the locking position. The biasing member is configured to apply a biasing force to the driven portion to keep the moving member in the locking position.