Vehicle, and control method of vehicle
AssigneeToyota Jidosha Kabushiki Kaisha
InventorYu Oe
Life of this patent
Estimating the term…
Abstract
Provided is a vehicle including an internal combustion engine, a generator a traction battery, a relay, an electric motor, an auxiliary battery, an electric heater, and a controller. The controller is configured to place the relay in a cut-off state when, at the time of the internal combustion engine being started, temperature of the traction battery is lower than a first predetermined temperature, and charging the auxiliary battery with electric power generated by the generator, and supply the electric power generated by the generator to the electric heater to raise the temperature of the traction battery, until the temperature of the traction battery exceeds a second predetermined temperature that is higher than the first predetermined temperature.
Claims6
A vehicle comprising:
- an internal combustion engine;
- a generator that is coupled to an output shaft of the internal combustion engine and that is configured to generate electric power when the internal combustion engine is in operation;
- a traction battery that is configured to be charged by the electric power generated by the generator;
- a relay that is configured to be able to cut off connection between the generator and the traction battery;
- an electric motor that is coupled to driving wheels and that is configured to be driven by electric power stored in the traction battery;
- an auxiliary battery;
- an electric heater that is configured to raise a temperature of the traction battery;
- and
- a controller that is configured to, when at a time of the internal combustion engine being started the temperature of the traction battery is lower than a first predetermined temperature, place the relay in a cut-off state, charge the auxiliary battery with the electric power generated by the generator, and supply the electric power generated by the generator to the electric heater to raise the temperature of the traction battery, until the temperature of the traction battery exceeds a second predetermined temperature that is higher than the first predetermined temperature.
A control method of a vehicle, the vehicle including an internal combustion engine, a generator that is coupled to an output shaft of the internal combustion engine and that is configured to generate electric power when the internal combustion engine s in operation, a traction battery that is configured to be charged by the electric power generated by the generator, a relay that is configured to be able to cut off connection between the generator and the traction battery, an electric motor that is coupled to driving wheels and that is configured to be driven by electric power stored in the traction battery, an auxiliary battery, and an electric heater that is configured to raise a temperature of the traction battery, the control method comprising:
- when the temperature of the traction battery is lower than a first predetermined temperature at a time of the internal combustion engine being started,
- placing the relay in a cut-off state, and charging the auxiliary battery with the electric power generated by the generator;
- and
- supplying the electric power generated by the generator to the electric heater to raise the temperature of the traction battery, until the temperature of the traction battery exceeds a second predetermined temperature that is higher than the first predetermined temperature.
Dependencies are inferred from the claim text.