Patent ID: 11926339
Assignee: GREAT WALL MOTOR COMPANY LIMITED
Field: Measurement (Instruments)
Classification: CPC B  G | IPC B

Claim 0:
1. A driving coordinate system construction method, wherein the driving coordinate system construction method is performed by a processor, and the method comprises:
determining a road boundary line on one side of a road on which a vehicle is located as a reference line for establishing a driving coordinate system, and storing the reference line in a machine-readable medium;
accessing the machine-readable medium to retrieve a vehicle position and the reference line, determining a reference line point with the minimum distance between the vehicle position and the reference line as an origin OF of the driving coordinate system in a vehicle coordinate system, and storing the origin OF in the machine-readable medium;
accessing the machine-readable medium to retrieve the origin OF, determining a road guiding line direction as an XF axis of the driving coordinate system based on the origin OF, and determining a direction following a left-hand rule with the road guiding line direction as a YF axis of the driving coordinate system;
forming a corresponding driving coordinate system based on the origin OF, the XF axis and the YF axis;
switching the reference line to adjust the driving coordinate system during a driving process of the vehicle; and
causing various sensing devices on the vehicle to collect effective information based on the adjusted driving coordinate system, and causing an automatic driving computer to control the driving of the vehicle based on the collected effective information.