TRAVELABLE DISTANCE CALCULATION APPARATUS

摘要

A travelable distance calculation apparatus comprises: an update device 72 for recording a measured remaining fuel amount value, and also sequentially updating the recorded value; a calculation device 73 for calculating a travelable distance based on the remaining capacity of a battery and the recorded value; and a display device 80 for displaying at least the travelable distance. During a period when an engine 13 is stopped, the update device 72 holds, as the recorded value, a value recorded during operation of the engine 13.

主权项

1. A travelable distance calculation apparatus loaded on a hybrid vehicle equipped with a travel motor, an engine, and a battery for supplying electric power to the travel motor,
the travelable distance calculation apparatus comprising: a measuring device that measures a remaining fuel amount based on a position of a liquid surface of fuel within a fuel tank provided in the hybrid vehicle; an update device that records the remaining fuel amount measured by the measuring device, and also sequentially updating a recorded value thereof; a calculation device that calculates a travelable distance based on a remaining capacity of the battery and the recorded value; a display device that displays the travelable distance calculated by the calculation device; a correction device that calculates a corrected remaining fuel amount value by filtering a measured remaining fuel amount value which is the remaining fuel amount measured by the measuring device; and a determination device that determines whether or not a variance value between the measured remaining fuel amount value and the recorded value is greater than a predetermined value, during a period when the engine is stopped, wherein the update device records the corrected remaining fuel amount value as the remaining fuel amount, also sequentially updates the recorded value, and holds a value updated finally during operation of the engine, as the recorded value, during the period when the engine is stopped, and the calculation device calculates the travelable distance based on the measured remaining fuel amount value, instead of the recorded value, if the determination device determines that the variance value between the measured remaining fuel amount value and the recorded value is greater than the predetermined value.