Hybrid vehicle and method for controlling the same
AssigneeToyota Jidosha Kabushiki Kaisha
InventorKeisuke Morisaki
Life of this patent
Estimating the term…
Abstract
A motor generator and a power converter are driven by an engine, to supply electric power to a power storage device. ECU causes the engine to start if SOC of the power storage device falls below a first threshold value, and causes the engine to stop if SOC exceeds a second threshold value which is larger than the first threshold value. In the case where a running range has been selected when the vehicle stops, ECU causes the engine to stop if SOC exceeds a third threshold value which is larger than the first threshold value and smaller than the second threshold value. In the case where a non-running range has been selected, ECU causes the engine to stop if SOC exceeds the second threshold value.
Claims10
A hybrid vehicle comprising:
- a power storage device;
- an internal combustion engine;
- at least one motor having an electric power generation function in which the motor is driven by said internal combustion engine to supply electric power to said power storage device and a function of producing running driving force;
- a control device configured to control start and stop of said internal combustion engine based on a start condition and a stop condition for said internal combustion engine set from a physical quantity relevant to a charged state of said power storage device;
- and
- a shift selection device for selection of one of a plurality of shift ranges included in one of a running range and a non-running range,
- in the case where said running range has been selected when the vehicle stops, said control device setting said start condition and said stop condition such that an operation duration of said internal combustion engine is shorter than during vehicle running, and in the case where said non-running range has been selected, said control device setting said stop condition such that said operation duration is longer than in the case where said running range has been selected when the vehicle stops.
A method for controlling a hybrid vehicle,
- said hybrid vehicle including
- a power storage device,
- an internal combustion engine,
- at least one motor having an electric power generation function in which the motor is driven by said internal combustion engine to supply electric power to said power storage device and a function of producing running driving force, and
- a shift selection device for selection of one of a plurality of shift ranges included in one of a running range and a non-running range,
- said method comprising the steps of:
- controlling start and stop of said internal combustion engine based on a start condition and a stop condition for said internal combustion engine set from a physical quantity relevant to a charged state of said power storage device;
- in the case where said running range has been selected when the vehicle stops, setting said start condition and said stop condition such that an operation duration of said internal combustion engine is shorter than during vehicle running;
- and
- in the case where said non-running range has been selected, setting said stop condition such that said operation duration is longer than in the case where said running range has been selected when the vehicle stops.
Dependencies are inferred from the claim text.