CAR NAVIGATOR

摘要

A navigator adapted to finding out a route suitable for driving in accordance with the acceleration resistance of a car and guiding the driver along the route. A load detector (38) determines a reference acceleration on the basis of throttle position acquired by a throttle position sensor (144) and an engine torque determined from the number of revolutions of an engine detected by a first revolution sensor (142), and detects an acceleration resistance of the car by comparing this reference acceleration with an actual acceleration obtained by differentiating the car speed obtained by a car speed sensor (141). An overall management portion (37) extracts a route on the basis of the acceleration resistance of the car and the road data stored in a road data memory (151) of a map data memory (15), and executes a search for route and guidance by using the driving road so extracted. <IMAGE>