| 摘要 |
<p>A vehicle navigation device receives a trailer coupling signal via a control unit and selects an appropriate route for the towing vehicle. The control unit may access a storage device on receipt of the signal, to obtain trailer information such as size (width, length, height); mass / weight; number of axles; brake capability (ABS); presence of an anti-snake device or the presence trailer stabilising hitch. The control unit may be used to modify vehicle dynamic parameters based on the trailer data which may by user defined or pre-configured. A video camera may be used to identify at least one parameter of the trailer e.g. trailer dimensions and/or trailer type. A vehicle speed notification threshold is set by a control unit in response to the receipt of a trailer coupling signal. The speed threshold may be accepted or overridden by the driver. The control unit may receive meteorological data, either wirelessly or from onboard sensors, and modify the speed threshold appropriately.</p> |
