A hybrid vehicle controller includes processing circuitry configured to execute a particulate matter (PM) deposition amount estimation process that estimates a deposition amount of PM deposited in the filter. The processing circuitry is configured to switch between a first mode and a second mode as a control mode that defines control of the engine and the motor. A use of the engine is limited in the first mode as compared with the second mode. The processing circuitry is configured to execute a display process that notifies a user that the filter needs to be regenerated when the control mode is the second mode if the estimated deposition amount is greater than or equal to a predetermined amount, and not to execute the display process when the control mode is the first mode even if the deposition amount is greater than or equal to the predetermined amount.

Various embodiments include a control system for the regeneration of a particle filter in an exhaust gas flow of an internal combustion engine of a hybrid vehicle including an electric machine comprising: a particle filter; a temperature sensor measuring an actual temperature of the filter; a first heat source upstream of the filter; and a controller. The controller is programmed to: determine a temperature difference between a setpoint temperature for regeneration of the particle filter and the actual temperature of the particle filter; calculate a power output difference to be applied based at least in part on the temperature difference; and control the first heat source using the power output difference.

A computer for controlling a drivetrain of a hybrid vehicle including a combustion engine, an electric machine, a battery and a “heated” catalytic converter including an internal heating system. The computer being configured to determine a plurality of values for a criterion pertaining to the energy consumption of the drivetrain as a function of the distribution of torque between the at least one combustion engine and the at least one electric machine, of the at least one combustion mode of the combustion engine, and of the energy consumption due to the use of the catalytic converter, select the minimum value of the consumption criterion, apply the combustion engine torque command, the electric machine torque command, the command pertaining to the energy consumption by the catalytic converter and the command pertaining to the combustion mode of the combustion engine corresponding to the selected value of the consumption criterion.

A method for operating a drive system of a hybrid vehicle is provided, which comprises reserving, by a controller of the drive system of the hybrid vehicle, electrical energy stored in a traction battery of the drive system and intended for an electrical heating of a catalyst of the drive system. A controller for a drive system of a hybrid vehicle to carry out such a method is also provided.

A control method for a hybrid vehicle is provided. The hybrid vehicle includes: a power generator that charges a battery using power of an engine; an electric motor that drives a driving wheel by electric power of the battery; a particulate filter that collects particulate matters contained in exhaust gas from the engine. In the control method, electric power is supplied from the battery to the power generator to perform a motoring operation of rotating the engine by the power generator to supply air to the particulate filter when particulate matters of a first predetermined amount or more are accumulated in the particulate filter. And motoring operation is prohibited even if the particulate filter is accumulated with particulate matters of the first predetermined amount or more when a predetermined first condition that a driver does not intend a motoring operation is satisfied.

A system includes at least one sensor coupled to an aftertreatment system and a controller having at least one processor coupled to at least one memory device storing instructions that, when executed by the at least one processor, cause the controller to perform operations. The operations include: adjusting an operating point of an engine in response to emissions information from the at least one sensor and based on a fault indicator regarding a component of the system; and, controlling an electric motor in response to the adjustment of the operating point of the engine based on a change in power output from the engine to assist in a desired emissions characteristic.

A computer for controlling a drivetrain of a hybrid vehicle including a combustion engine, an electric machine, a battery and a “heated” catalytic converter including an internal heating system. The computer being configured to determine a plurality of values for a criterion pertaining to the energy consumption of the drivetrain as a function of the distribution of torque between the at least one combustion engine and the at least one electric machine, of the at least one combustion mode of the combustion engine, and of the energy consumption due to the use of the catalytic converter, select the minimum value of the consumption criterion, apply the combustion engine torque command, the electric machine torque command, the command pertaining to the energy consumption by the catalytic converter and the command pertaining to the combustion mode of the combustion engine corresponding to the selected value of the consumption criterion.

Methods and systems are provided for partially regenerating a lean No.sub.x trap in response to an engine shutdown request. In one example, an engine shutdown is delayed so that a low-temperature storing region of the lean No.sub.x trap is regenerated without regenerating a high-temperature storing region of the lean No.sub.x trap.

A control method for a hybrid vehicle is provided. The hybrid vehicle includes: a generator configured to charge a battery by using power of an engine; an electric motor configured to drive a driving wheel by electric power of the battery; and a particulate filter configured to collect particulate matter contained in exhaust gas from the engine. In the control method, the engine is driven to raise a temperature of the particulate filter when a first temperature rise condition is satisfied in which a first predetermined amount or more of the particulate matter is accumulated in the particulate filter and the temperature of the particulate filter is equal to or lower than a predetermined temperature. Drive of the engine is prohibited, when a predetermined first condition that a driver does not intend to drive the engine is satisfied.

A controller includes an engine controlling section and a motor-generator controlling section. The controller is configured to use the engine controlling section and the motor-generator controlling section to execute an intermittent stop control, a temperature increase control, an intermittent stop prohibition control, and a motoring control. The intermittent stop control automatically stops and restarts operation of an internal combustion engine. The temperature increase control increases the temperature of a filter in the exhaust passage to a temperature at which PM can be burned. The intermittent stop prohibition control prohibits stop of the operation of the internal combustion engine by the intermittent stop control until the temperature increase control is completed. The motoring control drives the output shaft of the internal combustion engine by the motor-generator, thereby forcibly rotating the internal combustion engine.