Patent ID: 7555373
Filing Date: 2009-06-30
Classification: B60K,B60L,B60W,Y02T,Y10S,Y10T

Abstract:
1. A hybrid vehicle equipped with an internal combustion engine that is structured to output power to a driveshaft linked to an axle and with a motor that inputs and outputs power, said hybrid vehicle comprising: an electric power-mechanical power input output mechanism that is connected to an output shaft of the internal combustion engine and to the driveshaft and outputs at least part of the output power of the internal combustion engine to the driveshaft through input and output of electric power and mechanical power; a gear-based power transmission structure that connects the driveshaft with a rotating shaft of the motor via a gear mechanism to enable transmission of power between the driveshaft and the rotating shaft; an accumulator unit that is capable of inputting and outputting electric power from and to the motor and the electric power-mechanical power input output mechanism; a driving force demand setting module that sets a driving force demand to be output to the driveshaft; a stop-start requirement module that gives a stop requirement of the internal combustion engine upon satisfaction of a preset operation stop condition and gives a start requirement of the internal combustion engine upon satisfaction of a preset operation start condition; and a control module that, on condition that a degree of backlash adjustment in the gear mechanism satisfies a predetermined condition at a moment of the start requirement given by said stop-start requirement module, controls the internal combustion engine, the electric power-mechanical power input output mechanism, and the motor to start the internal combustion engine and to ensure output of a driving force equivalent to the set driving force demand to the driveshaft, on condition that the degree of backlash adjustment in the gear mechanism fails to satisfy the predetermined condition at the moment of the start requirement, said control module controlling the internal combustion engine, the electric power-mechanical power input output mechanism, and the motor to keep the internal combustion engine at a stop regardless of the start requirement and to ensure output of the driving force equivalent to the set driving force demand to the driveshaft.