The small-sized vehicle has two running wheels, a sensor device for detecting the manually introduced driving force, a drive motor (34) for running wheels, and a control device for controlling the drive motor depending on the detected manual driving force....

The vehicle i.e. wheelchair (10), has two removable running wheels (14) comprising motor boosters, where energy storage units (16) for the boosters are removably arranged outside the wheels on the vehicle. The wheels are connectable with the vehicle and a ...

The electrical energy storage device of wheelchair or other small vehicle is rechargeable with the manual movement or due to the downhill automatic movement of the vehicle via the protection circuit (10) by the induced voltage (U-Mot) of the motor (13). Th...

The circuit device has battery unit (10) that is composed of several battery cells or cell strands (11-18) that are arranged in series and are switched in parallel manner. A device (20) for galvanic disconnection is provided with switches (21-28) that are ...