A vehicle, in particular a vehicle to be propelled by muscular energy. The vehicle includes devices for compensating for forces acting on the vehicle in or against the direction of travel as a result of deviations from defined operating conditions. The vehicle advantageously maintains an unchanged driving behavior corresponding to the operating conditions even when there are deviations from the operating conditions,

A walk power mower having a cutting deck supported upon the ground by a front and rear wheel(s). The mower includes a traction drive system incorporating a bidirectional transmission adapted to propel the mower alternatively in both forward and reverse directions. In some embodiments, the mower may include a single bidirectional transmission (e.g., powering only rear wheel(s) or only front wheel(s) of the mower), while in other embodiments, two bidirectional transmissions may be provided to power both the front and the rear wheel(s). In other embodiments, the mower may include a bidirectional transmission powering the rear wheel(s), while the front wheel(s) may be attached to the deck via a caster assembly.

A device, in particular a vehicle, intended to be moved by muscle force, including an electric machine, which influences the movement of the device in addition to the muscle force and which produces an additional force, at least one sensor for measuring the muscle force acting on the device, and apparatuses for controlling the production of the additional force by the electric machine on the basis of the measurement signal of the sensor. The apparatuses for controlling the production of the driving and/or braking force include a load device for converting electrical energy produced by the electric machine operating as a generator into another form of energy, in particular heat.

A power assistance device according to the present disclosure is used for providing power assistance to a carrier to be moved. The power assistance device includes: a pressure sensor for detecting a total weight of the carrier; a driving device for providing a driving force in a traveling direction to the carrier; a control unit being in signal connection with the pressure sensor and the driving device, receiving the total weight detected by the pressure sensor, and being capable of sending a signal to the driving device to adjust the driving force outputted by the driving device, such that when the total weight changes, an external force required to drive the carrier in the traveling direction is maintained at a constant preset force. A control method of the power assistance device is also disclosed.

A hand cart capable of satisfying walking stabilization and facilitation of carrying articles according to a movement mode includes a control section operable, based on a rotational angle of a wheel section, to calculate a movement distance and a traveling direction, and, according to the traveling direction and the inclination angle, to execute an assist control of causing a wheel driving section to generate a driving torque for assist force or braking torque for braking force, wherein the control section is operable, based on a movement distance and the inclination angle, to calculate an angular change rate of the inclination angle, and, when a contact with a grip member is detected, and the angular change rate is equal to or less than a given threshold, to execute the assist control.

Systems and methods for sensing the presence of a load carried by a material handling vehicle are provided. The material handling vehicle includes a vehicle body, and a load supporting member configured to support the load. The material handling vehicle further includes a load sensor configured to determine the presence of the load within a defined range of the load supporting member.

A power assist system for a wagon is provided. The power assist system provides a rotational force to one or more drive wheels under certain conditions to provide propulsion for the wagon. The power assist wagon preferably includes a drive system for providing the rotational force to the drive wheel, a control system for determining when the drive system should be activated and how much propulsion assist to provide to the drive wheel, and a power system for providing power to the drive system. The power assist wagon may also have a safety cut-off system to preclude the drive system from providing a rotational force to the drive wheel 16 even when the system is in the on mode.

An operation device for receiving an operation input regarding translation and/or turning about a vertical axis of a moving body from a user who operates the moving body includes: at least three leg parts extending upward from a vehicle body; an operation part joined to each of the leg parts and configured to receive an operation input from a user; and at least one displacement sensor configured to detect a horizontal displacement amount of the operation part. As seen in top view, each of the leg parts is in a position spaced from a straight line connecting selected two of other leg parts.

A hand cart capable of satisfying walking stabilization and facilitation of carrying articles according to a movement mode includes a control section operable, based on a rotational angle of a wheel section, to calculate a movement distance and a traveling direction, and, according to the traveling direction and the inclination angle, to execute an assist control of causing a wheel driving section to generate a driving torque for assist force or braking torque for braking force, wherein the control section is operable, based on a movement distance and the inclination angle, to calculate an angular change rate of the inclination angle, and, when a contact with a grip member is detected, and the angular change rate is equal to or less than a given threshold, to execute the assist control.

The invention relates to a stroller frame, comprising a sensor unit for capturing sensor data and a drive unit comprised of a computing unit, which is designed to switch the drive unit between a driving state and a non-driving state according to the time curve of the sensor data.