Abstract:
A vehicle includes a chassis and a plurality of wheel assemblies articulated with the chassis, each of the plurality of wheel assemblies comprising a rotatable wheel spaced away from the chassis, and further comprising an articulated suspension system mounted to the chassis and a hub drive. Furthermore a method of operating such is disclosed.
Abstract:
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.
Abstract:
A transportation vehicle (100) for transporting an individual over ground having a surface that may be irregular. The vehicle has a support platform (112) for supporting the subject and the support platform is coupled to a ground-contacting module at a pivot (118). While the ground-contacting module may be statically stable, balance of the support platform with respect to the ground-contacting module (104) is maintained by motion of the ground-contacting module in response to leaning of the support platform. A motorized drive coupled to the ground-contacting module causes locomotion of the vehicle and the subject therewith over the surface, while a control loop, in which the motorized drive is included, dynamically enhances stability in the fore-aft plane by operation of the motorized drive in connection with the ground-contacting module. In the event of failure of the control loop, the pivot connection of the support platform to the ground-contacting module may be locked, thereby ensuring stability of the static assembly.
Abstract:
With a vehicle comprising a motor (5; 12; 20, 21; 32, 33) and two rotatable elements (1, 2; 18, 19; 30, 31) which are in contact with the ground during travelling of the vehicle, the vehicle has two substantially parallel, once passed through contact tracks with the ground and each of the two rotatable elements (1, 2; 18, 19; 30, 31) is capable of being driven. Consequently, the vehicle is compact and has a simple steering mechanism.
Abstract:
본 발명은 주행 중 노면으로부터 전달되는 충격을 완충할 수 있도록 개선된 인휠 모터 구동장치 및 이를 포함하는 이동장치를 제공하는 것으로, 본 발명에 따른 인휠 모터 구동장치는 휠을 포함하는 바퀴; 상기 휠의 내부에 제공되며, 상기 휠을 회전시키는 인휠 모터; 상기 인휠 모터의 측면에 제공되고, 일측에 이동장치가 연결되는 지지부; 및 상기 인휠 모터와 상기 지지부 사이에 제공되어 상하 이동시 발생하는 충격을 완충하는 완충유닛;을 포함한다.