US 12,420,772 B2
Hybrid electric vehicle
Masanao Idogawa, Nagoya (JP); Hirokazu Andoh, Seto (JP); Takahiro Uchida, Okazaki (JP); Yoshikazu Asami, Gotemba (JP); Hidekazu Nawata, Toyota (JP); Jumpei Nasu, Nisshin (JP); and Sohichi Imai, Toyota (JP)
Assigned to TOYOTA JIDOSHA KABUSHIKI KAISHA, Aichi-Ken (JP)
Filed by TOYOTA JIDOSHA KABUSHIKI KAISHA, Aichi-ken (JP)
Filed on Feb. 22, 2023, as Appl. No. 18/172,320.
Claims priority of application No. 2022-074860 (JP), filed on Apr. 28, 2022.
Prior Publication US 2023/0347863 A1, Nov. 2, 2023
Int. Cl. B60W 20/10 (2016.01); B60W 20/16 (2016.01); B60W 20/40 (2016.01); F01N 3/20 (2006.01); B60K 6/24 (2007.10); B60K 6/26 (2007.10)
CPC B60W 20/10 (2013.01) [B60W 20/16 (2016.01); B60W 20/40 (2013.01); F01N 3/20 (2013.01); B60K 6/24 (2013.01); B60K 6/26 (2013.01); B60Y 2200/92 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A hybrid electric vehicle, comprising:
an engine including an exhaust gas control device provided with a catalyst that controls exhaust gas and an in-cylinder injection valve, the exhaust gas control device being attached to an exhaust system;
a first electric motor that is mechanically connected to an output shaft of the engine and that is configured to generate electricity;
a second electric motor that is configured to input and output power for traveling;
an electric power storage device that is configured to exchange electric power with the first electric motor and the second electric motor; and
a control device configured to control the engine, the first electric motor, and the second electric motor,
wherein
the control device is configured to, while rapid catalyst warm-up, in which fuel is injected in a compression stroke or an expansion stroke in the engine and the engine is operated with an ignition timing being retarded so as to warm up a catalyst of the exhaust gas control device, is being performed during idle-off in which an idling operation of the engine is not instructed and the engine is operated,
control the engine and the first electric motor to operate the engine at a first predetermined engine speed while the engine outputs predetermined torque, and
control the second electric motor to output a driving force based on a required driving force for travelling.