US 12,128,872 B2
Driving force control system for hybrid vehicle
Hideto Wakabayashi, Numazu (JP); Masahiro Sato, Susono (JP); and Seitaro Misawa, Susono (JP)
Assigned to TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota (JP)
Filed by TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota (JP)
Filed on Apr. 26, 2023, as Appl. No. 18/307,095.
Claims priority of application No. 2022-081290 (JP), filed on May 18, 2022.
Prior Publication US 2023/0398976 A1, Dec. 14, 2023
Int. Cl. B60W 20/00 (2016.01); B60W 20/13 (2016.01); B60W 20/16 (2016.01); F01N 11/00 (2006.01); F02D 41/02 (2006.01)
CPC B60W 20/16 (2016.01) [B60W 20/13 (2016.01); F01N 11/002 (2013.01); F02D 41/0235 (2013.01); B60W 2510/244 (2013.01); F01N 2550/04 (2013.01)] 5 Claims
OG exemplary drawing
 
1. A driving force control system for a hybrid vehicle comprising:
a prime mover including an engine and a motor;
a particulate filter that captures particulate matter contained on an exhaust gas emitted from the engine; and
an electric storage device that supplies electric power to the motor,
wherein an operating mode of the hybrid vehicle is selected at least from
a hybrid mode in which the hybrid vehicle is propelled by at least a part of a power generated by the engine and a power generated by the motor, and
a motor mode in which the hybrid vehicle is propelled only by the power generated by the motor,
the driving force control system further comprises a controller that controls the engine and the motor,
the controller is configured to
shift the operating mode from the motor mode to the hybrid mode based on a state of charge level of the electric storage device, and
set a threshold level of the state of charge level to shift the operating mode from the motor mode to the hybrid mode to a higher level and set an upper limit power of the engine in the hybrid mode to a lower power in a situation where amount of the particulate matter accumulated in the particulate filter is equal to or smaller than a predetermined amount, compared to the threshold level and the upper limit power set in a situation where the amount of the particulate matter accumulated in the particulate filter is greater than the predetermined amount.