A semi-trailer 31 has a chassis 33, a first pair of ground-engaging wheels (23, Figure 3) located at and supporting a rear end of chassis 33, a coupling part 21 (for example a kingpin) under chassis 33 at a front end 31a of semi-trailer 31 to couple it to a tractor unit 80 (for example a fifth-wheel coupling), and a second pair of wheels 25 towards front end 31a relative to the first wheel pair. Semi-trailer 31 also has an electrically powered motor (71, Figure 4) connected to one of the first or second wheel pairs so as to drive rotation of the respective wheel pair. Semi-trailer 31 may have a generator for converting movement of a motor-driven wheel pair to electrical energy, for example for charging a battery or powering auxiliary apparatus. The semi-trailer may have a controller for autonomous driving. Second wheel pair 25 may be pivotally connected to the chassis so as to be moved to an inoperative position.
Semi-trailer and electric drive module suitable for mounting on a semi-trailer
2020-04-08
Patent
Electronic Resource
English
IPC: | B62D MOTOR VEHICLES , Motorfahrzeuge |
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