Vehicle and control method for vehicle
AssigneeToyota Jidosha Kabushiki Kaisha
InventorsTakashi Kohno, Kenta Kumazaki
Life of this patent
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Abstract
An electronic control unit is configured to make an engine start-up threshold at a time of second operation control smaller than an engine start-up threshold at a time of first operation control. Therefore, the engine stop time at the time of the first operation control can be made long. In consequence, the vehicle efficiency can be enhanced in a vehicle in which the first operation control and the second operation control can be selectively performed.
Claims8
A vehicle comprising:
- an engine;
- a first rotary machine configured to output a driving torque;
- a battery configured to be charged by a motive power of the engine and supply an electric power to the first rotary machine;
- and
- an electronic control unit configured to:
- selectively perform:
- a first operation control of causing the vehicle to run based on a driver's driving operation;
- and a second operation control of automatically setting a target running state based on at least one of map information and road information and automatically carrying out acceleration or deceleration based on the target running state,
- while the engine is stopped, start the engine when the engine is stopped and a value representing a state of charge of the battery falls below an engine start threshold;
- and
- set the engine start threshold during the second operation control to be smaller than the engine start threshold during the first operation control.
A control method for a vehicle that includes an engine, a first rotary machine configured to output a driving torque, a battery configured to be charged by a motive power of the engine and configured to supply an electric power to the first rotary machine, and an electronic control unit, the control method comprising:
- performing, by the electronic control unit, a first operation control of causing the vehicle to run based on a driver's driving operation;
- performing, by the electronic control unit, second operation control of automatically setting a target running state based on at least one of map information and road information and automatically carrying out acceleration or deceleration based on the target running state;
- while the engine is stopped, starting, by the electronic control unit, the engine when a value representing a state of charge of the battery falls below an engine start threshold;
- and
- setting, by the electronic control unit, the engine start threshold during the second operation control to be smaller than the engine start threshold during the first operation control.
Dependencies are inferred from the claim text.