HYBRID VEHICLE

摘要

A controller executes a controlling process including: calculating first power Pa(1) to first power Pa(4) when an engine is requested to be stopped; when a sum of first power Pa and second power Pb at a current transmission gear position is greater than a discharge power limit value Wout of a power storage device, and when there is a transmission gear position at which the sum of first power Pa and second power Pb is equal to or less than the discharge power limit value Wout of the power storage device, determining the transmission gear position as a target transmission gear position; executing control for shifting a transmission gear position to the determined transmission gear position; and executing control for stopping the engine.

主权项

1. A hybrid vehicle comprising:
an engine; a first motor generator; a second motor generator configured to output motive power to a driving wheel of the vehicle; a transmission including a plurality of gear positions, and provided between the driving wheel and the second motor generator; a differential including (i) a first rotating element connected to the first motor generator, (ii) a second rotating element connected to the second motor generator, and (iii) a third rotating element connected to an output shaft of the engine, the differential being configured such that, when rotation speeds of two rotating elements among the first rotating element, the second rotating element and the third rotating element are determined, a rotation speed of one remaining rotating element is determined; a power storage device configured to transmit and receive electric power to and from each of the first motor generator and the second motor generator; and a controller configured to, when rotation of the output shaft of the engine is stopped using the first motor generator during traveling of the vehicle, (i) shift a gear position so as to decrease a sum of first power required for operating the first motor generator and second power required for driving the driving wheel, and (ii) reduce a rotation speed of the engine using the first motor generator.