| 摘要 |
PROBLEM TO BE SOLVED: To provide a travel warning device for vehicle that can give a warning to the driver of a vehicle by taking the air pressure in a tire into consideration. SOLUTION: The control circuit 2 of car navigation equipment 1 measures the air pressure in a tire by means of a tire air pressure sensor 10 when a point to be warned, at which a heavy load acts on the tire, exists on a route or in the advancing direction along the route when the route is set or in the advancing direction of the vehicle. When the measured air pressure is not a specified value, the control circuit 2 issues a warning by judging that the vehicle becomes unstable due to the heavy load when the vehicle runs through the point. Therefore, the vehicle can be prevented from becoming unstable when the vehicle passes through the point to be warned by adjusting the air pressure in the tire to the specified value. COPYRIGHT: (C)2004,JPO&NCIPI |
