US 12,434,683 B2
Vehicle, and control method of vehicle
Yu Oe, Toyota (JP)
Assigned to TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota (JP)
Filed by TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota (JP)
Filed on May 17, 2023, as Appl. No. 18/198,334.
Claims priority of application No. 2022-113012 (JP), filed on Jul. 14, 2022.
Prior Publication US 2024/0017711 A1, Jan. 18, 2024
Int. Cl. B60W 20/00 (2016.01); B60K 6/28 (2007.10); B60K 6/46 (2007.10); B60L 1/02 (2006.01); B60L 50/15 (2019.01); B60L 53/20 (2019.01); B60L 58/18 (2019.01); B60L 58/27 (2019.01); B60W 10/26 (2006.01); B60W 10/30 (2006.01)
CPC B60W 20/00 (2013.01) [B60K 6/28 (2013.01); B60K 6/46 (2013.01); B60L 1/02 (2013.01); B60L 50/15 (2019.02); B60L 53/20 (2019.02); B60L 58/18 (2019.02); B60L 58/27 (2019.02); B60W 10/26 (2013.01); B60W 10/30 (2013.01); B60L 2240/545 (2013.01); B60W 2510/246 (2013.01); B60W 2710/246 (2013.01); B60W 2710/305 (2013.01); B60Y 2200/92 (2013.01)] 6 Claims
OG exemplary drawing
 
1. 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.