US 6,982,635 B2
Technique for assisting a vehicle user to make a turn
Michael L. Obradovich, San Clemente, Calif. (US)
Assigned to American Calcar Inc., Wilmington, Del. (US)
Appl. No. 10/380,449
PCT Filed Sep. 20, 2001, PCT No. PCT/US01/29425
§ 371(c)(1), (2), (4) Date Mar. 10, 2003,
PCT Pub. No. WO02/25291, PCT Pub. Date Mar. 28, 2002.
Claims priority of provisional application 60/283685, filed on Apr. 13, 2001.
Claims priority of provisional application 60/234134, filed on Sep. 21, 2000.
Prior Publication US 2004/0036601 A1, Feb. 26, 2004
Int. Cl. B60Q 1/00 (2006.01); G08G 1/16 (2006.01)
U.S. Cl. 340—439 16 Claims
OG exemplary drawing
 
1. A method for assisting a user of a vehicle to make a turn around an object comprising:
detecting the object;
measuring a first distance that the vehicle has been traveling since the time of detecting the object;
measuring a second distance from a side of the vehicle to the object;
determining a third distance before the vehicle turns as a function of at least the second distance; and
instructing the user to make the turn when the first distance exceeds the third distance.