Abstract: A method of providing vehicular navigation information includes providing a head unit embedded in a vehicle and configuring the head unit as a client device running an HTML-5 based navigation app. A smart phone is configured as a server device and linked to the head unit utilizing wireless local area network technologies. The wireless local area network technology may be Bluetooth. The smart phone transmits to the head unit via the wireless local area network technologies as needed a navigational map tile in vector format, a calculated route, and a proper subset of navigational raw voice guidance data stored on the smart phone. The HTML-5 based navigation app renders the navigational map tile and the calculated route geometry on a display of the head unit and the head unit plays at least a portion of the proper subset of the navigational raw voice guidance data through a speaker.

Abstract: A method of route planning and handling prohibited complex driving maneuvers is provided. An OPEN list and a CLOSED list of an A-Star algorithm are initiated. A first node from the OPEN list is selected as a processing node. One or multiple filtered complex maneuver restrictions of the first node are stored in a rule list before acquiring a second node connected to the processing node. The second node is added to the OPEN list when the second node is allowed to be selected according to the rule list.

Abstract: A method of providing vehicular navigation information includes providing a head unit embedded in a vehicle and configuring the head unit as a client device running an HTML-5 based navigation app. A smart phone is configured as a server device and linked to the head unit utilizing wireless local area network technologies. The wireless local area network technology may be Bluetooth. The smart phone transmits to the head unit via the wireless local area network technologies as needed a navigational map tile in vector format, a calculated route, and a proper subset of navigational raw voice guidance data stored on the smart phone. The HTML-5 based navigation app renders the navigational map tile and the calculated route geometry on a display of the head unit and the head unit plays at least a portion of the proper subset of the navigational raw voice guidance data through a speaker.