Methods and systems are provided for an electric vehicle powertrain. The vehicle system includes an electric distribution assembly with a junction box that is electrically coupled to a traction motor-generator and is designed to electrically coupled to, via separate circuits, a traction battery assembly and a hydrogen fuel cell assembly that is positioned behind a vehicle cab. In the system, the traction battery assembly is positioned vertically below the hydrogen fuel cell assembly.

A work machine that compacts a road surface by rotation of a roller, the work machine comprises: a motor that outputs a driving force for rotating the roller; a first battery and a second battery that supply electric power to the motor; and a housing that holds the motor, the first battery, and the second battery. An upper surface of the housing has: a first opening into which the first battery is insertable, and a second opening into which the second battery is insertable, and in a front view of the work machine. The first battery inserted from the first opening and the second battery inserted from the second opening are inclined in different directions with respect to a normal line of the road surface and held by the housing.

The present disclosure provides a positioning device and a truck. The positioning device includes: a location pin disposed on a location pin mounting base of a battery swap base, a location hole disposed on a location hole mounting base of a battery frame, and a buffer assembly. The location pin is inserted into the location hole. The buffer assembly is disposed at least in one of the following positions: between the location pin mounting base and the location pin, between the location pin and the location hole mounting base, and on the location pin; such that in a case that a hole spacing deviation exists between the battery frame and the battery swap base, the buffer assembly offsets the hole spacing deviation, and in a case that a relative movement exists between the battery frame and the battery swap base, the buffer assembly provides a buffer for shock absorption.

A frame module and a modular frame of an electric vehicle extend along a longitudinal direction. The frame module has a longitudinally extending central partition wall, a front wall and a rear wall, a battery storage structure having first and second battery storage compartments provided on opposite sides of the central partition wall, each battery storage compartment being configured to receive at least one battery module and being delimited by the central partition wall and longitudinally extending first and second side walls of the frame module, respectively. The first and second side walls are releasably mounted to the battery storage structure to enable opening of the first and second battery storage compartments, respectively.

The invention pertains to an electric bicycle (1) comprising a bicycle frame (2) and at least one battery assembly (8) having a drive battery (6), wherein the drive battery (6) comprises a fastening device (12) for detachable fastening to a frame-side holder (10) with a fastening projection (14), characterized in that a receptacle (20) of the drive battery (6) can be brought into engagement with the fastening projection (14) of the holder (10) in such a manner that the drive battery (6) can be pivoted into the holder (10) about the fastening projection (14) and can be locked by means of a latching lever (22).

Various personal mobility vehicles, such as scooters, are disclosed. The scooter can include at least one battery and motor for powering at least one driven wheel. The vehicle can include a gear assembly to convert a torque produced by the motor to a different torque to a driven shaft to power the at least one driven wheel. The battery can be removable.

The present application relates to a battery storage device and an oiling method, and belongs to the technical field of battery overhauling and maintenance. The present application provides a battery storage device for storing a battery and charging the battery, and the battery has a connecting element for being connected to an electrical apparatus. The battery storage device includes: a battery placement rack; and an oiling mechanism arranged on the battery placement rack and used for oiling the connecting element. The present application further provides an oiling method. By using the battery storage device and the oiling method provided in the present application, the connecting element of the battery can be oiled and maintained, and the service life of the connecting element of the battery is prolonged.

A battery replacement device for vehicles includes a battery module, a first floating structure and a fixing device, the fixing device is used to fix the battery module on the longitudinal beam of the vehicle, the fixing device includes a fixing substrate, the first floating structure is provided between the battery module and the fixing substrate, and the first floating structure is used to alleviate a vibration amplitude of the battery module.

An electric vehicle battery automatic disconnection system using temperature detection including a battery part configured to provide power to an electric vehicle, a sensor part configured to measure a temperature of the battery part and detect smoke, a connector part configured to charge the battery part, a casing part having an inner space for housing the battery part, and an electronic coupling part configured to couple the casing part to a lower part of the electric vehicle, in which the electronic coupling part is further configured to disconnect the casing part from the lower part of the electric vehicle when the temperature detected by the sensor part exceeds a predetermined threshold or when smoke is detected.

A battery support frame structure S has: a plurality of side members 1 extending in the longitudinal direction of a vehicle and having a hole 11 that passes therebetween and is formed in the vehicle width direction; and a battery 2 that is inserted into the hole 11 of the plurality of side members 1 and is longer in the vehicle width direction than the length between the plurality of side members 1. Additionally, the side members 1 extend in a straight line in the vehicle longitudinal direction. The battery support frame structure S additionally has a first member 3 that extends along the battery 2 above the battery 2 in the vehicle height direction, and a second member 4 that extends along the battery 2 below the battery 2 in the vehicle height direction.