| 摘要 |
A motor vehicle comprises a primary driven axle and a secondary driven axle which is adapted to be arbitrarily driven under the control of an electric control device. In order to ensure a more reliable handling of the vehicle during a braking, the electric control device comprises a switch, which is arranged to be automatically enabled in response to a rise of the speed of travel of the vehicle to a predetermined value and which in an enabled state is arranged to respond to a braking operation or a predetermined braking operation by a disabling of the drive train leading to the secondary driven axle and to maintain the drive train disabled, and an additional switch, which is manually operable to enable the drive train.
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