Series hybrid vehicle control method and series hybrid vehicle
AssigneeNissan Motor Co., Ltd.
InventorsShingo Tanoue, Kenji Yasaka, Kenichiro Shin
Life of this patent
Estimating the term…
Abstract
A series hybrid vehicle control method controls a series hybrid vehicle including a power generation system that generates electric power by driving an electric generator with an internal combustion engine. A control unit is configured to, in a case where a failure occurs in the power generation system, limit a torque of the internal combustion engine, set an engine rotation speed at which power generation efficiency of the electric generator is maximized within a range in which the torque is limited, and control the internal combustion engine based on the engine rotation speed.
Claims5
A series hybrid vehicle control method for controlling a series hybrid vehicle including a power generation system that generates electric power by driving an electric generator with an internal combustion engine including a supercharger, the method comprising:
- in a case where a failure in which a differential pressure generation valve provided in an intake passage of the internal combustion engine is stuck in a closed state occurs,
- limiting a torque of the internal combustion engine to a range in which a negative pressure in a portion of the intake passage which is between the differential pressure generation valve and a compressor of the supercharger does not exceed a seal limit of an oil seal of the supercharger even in a state where the differential pressure generation valve is stuck in a closed state;
- setting an engine rotation speed at which power generation efficiency of the electric generator is maximized within the range in which the torque is limited;
- and
- controlling the internal combustion engine based on the engine rotation speed.
A series hybrid vehicle comprising:
- a power generation system configured to generate electric power by driving an electric generator with an internal combustion engine including a supercharger;
- and
- a control unit configured to control the power generation system, wherein the control unit is programmed to:
- in a case where a failure in which a differential pressure generation valve provided in an intake passage of the internal combustion engine is stuck in a closed state occurs,
- limit a torque of the internal combustion engine to a range in which a negative pressure in a portion of the intake passage which is between the differential pressure generation valve and a compressor of the supercharger does not exceed a seal limit of an oil seal of the supercharger even in a state where the differential pressure generation valve is stuck in a closed state;
- set an engine rotation speed at which power generation efficiency of the electric generator is maximized within the range in which the torque is limited;
- and
- control the internal combustion engine based on the engine rotation speed.
Dependencies are inferred from the claim text.