A cart with powered folding and unfolding capability is provided. The cart has a cradle for holding a load, a frame supporting said cradle, said frame including a U-shaped leg member defining a pair of free ends connected to said cradle and a cross-bar end connected to a pair of wheels for ground engagement to enable said cart to roll along the ground, at least one leg pivot motor coupled to said leg member to enable powered folding of said leg member with respect to said cradle. The cart has a battery disposed on said cradle to power said leg pivot motor to enable powered folding and unfolding of said leg member. The cart also has an actuator disposed on said frame to initiate powered folding or unfolding of said leg member. Such a cart may also include a pair of auxiliary legs which are capable of powered folding.

A concrete mixer vehicle includes a chassis, a tractive assembly coupled to the chassis and configured to propel the concrete mixer vehicle, a mixing drum rotatably coupled to the chassis, and an electromagnetic device configured to convert electrical energy to mechanical energy to drive the tractive assembly. In a first configuration, a first battery module is removably coupled to the chassis and configured to provide the electrical energy to the electromagnetic device, and in a second configuration, the first battery module is removed from the chassis and replaced with a second battery module, the second battery module removably coupled to the chassis and configured to provide the electrical energy to the electromagnetic device.

A concrete mixer vehicle includes a chassis, a tractive assembly coupled to the chassis and configured to propel the concrete mixer vehicle, a mixing drum rotatably coupled to the chassis, and an electromagnetic device configured to convert electrical energy to mechanical energy to drive the tractive assembly. In a first configuration, a first battery module is removably coupled to the chassis and configured to provide the electrical energy to the electromagnetic device, and in a second configuration, the first battery module is removed from the chassis and replaced with a second battery module, the second battery module removably coupled to the chassis and configured to provide the electrical energy to the electromagnetic device.

Disclosed are a battery replacement system and a control method for the battery replacement system. The battery replacement system comprises a walking channel (2) and a battery replacement apparatus (1), wherein a battery replacement position (4) is provided on the walking channel (2), and the battery replacement apparatus (1) is used for moving to the battery replacement position (4) along the walking channel (2). The battery replacement system and the control method for the battery replacement system can realize rapid battery replacement operation and improve the battery replacement efficiency and the stability of the battery replacement operation.

Disclosed are a battery replacement system and a control method for the battery replacement system. The battery replacement system comprises a walking channel (2) and a battery replacement apparatus (1), wherein a battery replacement position (4) is provided on the walking channel (2), and the battery replacement apparatus (1) is used for moving to the battery replacement position (4) along the walking channel (2). The battery replacement system and the control method for the battery replacement system can realize rapid battery replacement operation and improve the battery replacement efficiency and the stability of the battery replacement operation.

A work machine may include a source of electrical power, a ground engaging traction system, and an implement for performing work. The work machine may also include one or more motors operable to use the electrical power from the power source to operate the ground engaging traction system to cause the work machine to travel along the ground and operable to use the electrical power from the power source to operate the implement. The work machine may also include a reserve power component configured to receive a reserve power amount from a user or automatically determine the reserve power amount, compare an available power amount to the reserve power amount to establish a comparison, and issue alerts or impart controls on operation of the work machine based on the comparison.

A work machine may include a source of electrical power, a ground engaging traction system, and an implement for performing work. The work machine may also include one or more motors operable to use the electrical power from the power source to operate the ground engaging traction system to cause the work machine to travel along the ground and operable to use the electrical power from the power source to operate the implement. The work machine may also include a reserve power component configured to receive a reserve power amount from a user or automatically determine the reserve power amount, compare an available power amount to the reserve power amount to establish a comparison, and issue alerts or impart controls on operation of the work machine based on the comparison.

Embodiments of the present application provide a vehicle control method, module, and system, a device and a medium. The method includes: acquiring, under a condition that it is determined to install a target battery provided by a battery swapping station for the vehicle, a network address of a first battery management unit of the target battery; requesting to establish a wireless communication connection between a control module and the first battery management unit, based on the network address of the first battery management unit of the target battery; transmitting, under a condition that the wireless communication connection between the control module and the first battery management unit is successfully established, a first prompt signal to a target object, where the first prompt signal is used to prompt the target object to perform a relevant operation for allowing the vehicle to leave a battery swapping area.

The embodiments of the application provide a battery swapping method, a server and a battery installing-and-removing device. The battery swapping method comprising: receiving battery swapping status information of an electric vehicle; sending a battery removing instruction to a battery installing-and-removing device based on the battery swapping status information; sending a battery installation instruction to the battery installing-and-removing device when detecting that the first battery is transported to the first position; receiving the battery installation information sent by the battery installing-and-removing device; sending a battery swapping completion instruction to the electric vehicle based on the battery installation information.

The embodiments of the application provide a battery swapping method, a server and a battery installing-and-removing device. The battery swapping method comprising: receiving battery swapping status information of an electric vehicle; sending a battery removing instruction to a battery installing-and-removing device based on the battery swapping status information; sending a battery installation instruction to the battery installing-and-removing device when detecting that the first battery is transported to the first position; receiving the battery installation information sent by the battery installing-and-removing device; sending a battery swapping completion instruction to the electric vehicle based on the battery installation information.