| 摘要 |
A modular drive wheel system is used for supporting and driving an object so as to provide a power driven vehicle. The wheel system comprises two or more wheeled units or bogies (2) adapted to be mounted at selected locations of the object to support the same. Each unit or bogie (2) comprises one or more wheel members (1) mounted in the unit so as to be rotatable relative thereto. Motors (M) for rotating each wheel member of the unit and for steering the wheel member(s) of the unit or bogie in desired directions. The system further comprises a programmable central control unit (CPU) or microcomputer and a programmable electronic bogie control device (3) arranged at each of the wheeled units or bogies (2) for controlling the function of the driving and steering motors (M) of the wheeled unit(s) (2). Preferably, the central control unit and the bogie control devices (3) are galvanicly isolated, for example by means of optocouplers, and the control unit (CPU) may comprise means for transforming output command signals to be transmitted to the bogie control devices at the wheeled units or bogies into serial digital strings, whereby information may be transferred to the bogie control devices, for example via optocouplers (25), with high efficiency. Such modular system may be marketed as a standard wheel system for rendering any object, such as a load carrying platform or a vehicle, including wheeled hospital beds, self-propelling and extremely manoeuvrable. |
