Drive system
AssigneeHonda Motor Co., Ltd.
InventorsMitsuhiro Iwadare, Satoshi Kodo, Tsunehiro Kobayashi
Life of this patent
Estimating the term…
Abstract
Provided is a drive system that enables a reduction in the rise time of foot axis torque even if the drive system has a one-way clutch. The drive system includes a one-way clutch between a transmission and an output shaft. When a coasting determination unit determines to perform a coasting control, a control unit executes the coasting control by reducing the engine rotation speed of an internal combustion engine or stopping the engine rotation to bring the one-way clutch into a non-transmission state, and changing the transmission gear ratio of the transmission to a transmission gear ratio smaller than the transmission gear ratio calculated by a calculation unit.
Claims11
A drive system comprising:
- a transmission provided at a downstream side of an internal combustion engine;
- a one-way clutch provided between the transmission and an output shaft;
- a calculation means that calculates a transmission gear ratio of the transmission based on a vehicle speed of a vehicle on which the drive system is mounted;
- a coasting determination means that determines whether to perform a coasting control or not, the coasting control bringing a transmission of power from the internal combustion engine to the output shaft into a non-transmission state;
- and
- a control means that controls an engine rotation speed of the internal combustion engine and the transmission gear ratio of the transmission, wherein
- when the coasting determination means determines to perform the coasting control, the control means executes the coasting control by reducing the engine rotation speed of the internal combustion engine or stopping the engine rotation to bring the one-way clutch into a non-transmission state, and changing the transmission gear ratio of the transmission to a transmission gear ratio smaller than the transmission gear ratio calculated by the calculation means.
Dependencies are inferred from the claim text.