Patent ID: 11920534
Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F | IPC F

Claim 0:
1. A controller for a vehicle, wherein the vehicle includes:
an internal combustion engine including a cylinder, a fuel injection valve configured to inject fuel into the cylinder, an ignition plug configured to perform ignition in the cylinder, an exhaust passage through which exhaust flows from the cylinder, and a filter configured to collect particulate matter from the exhaust;
a motor-generator coupled to a crankshaft of the internal combustion engine; and
a battery configured to be supplied with electric power from the motor-generator;
the controller comprising:
processing circuitry configured to execute:
an accumulation amount calculation process that calculates a PM accumulation amount that is an accumulated amount of the particulate matter collected by the filter;
in response to the vehicle decelerating and the PM accumulation amount being greater than or equal to a specified accumulation amount determined in advance, a filter regeneration process that stops injection of the fuel from the fuel injection valve during rotation of the crankshaft of the internal combustion engine so as to burn the particulate matter collected by the filter;
after the filter regeneration process is terminated, in response to the vehicle decelerating and a temperature of the filter being greater than or equal to a predetermined temperature threshold value, a firing process that injects the fuel from the fuel injection valve and performs ignition with the ignition plug; and
after the firing process is terminated, in response to the vehicle decelerating and a speed of the vehicle being less than or equal to a specified speed determined in advance, a stopping process that stops the rotation of the crankshaft of the internal combustion engine, wherein

the specified speed is a minimum speed of the vehicle allowing air required for the filter regeneration process to be supplied to the filter when the filter regeneration process is executed.