F02N11/084

Methods and systems for start/stop

Methods and systems are provided for a start/stop feature. In one example, a method includes adjusting start/stop conditions in response to a vehicle operator customizing start/stop conditions. The vehicle operator customizes start/stop conditions for a plurality of different driving conditions.

Controller for hybrid vehicle

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.

Wheeled vehicle provided with an automatic stop function for stopping the heat engine and method for optimizing stoppage conditions of such a vehicle
11378050 · 2022-07-05 · ·

The invention relates to a wheeled vehicle (1) comprising: a chassis (2) carrying an engine (4), a starter (5) of the engine and a device for actuating said starter (5), a control unit, and an activatable/deactivatable device for energising the control unit, said vehicle (1) having an economical operating mode in which, in the activated state of the energising device, the control unit is designed to allow the motor (4) to be stopped without actuation of the energising device, said stoppage being called energised stoppage of the engine (4). The vehicle (1) comprises a memory for storing data relating to the number of starts of the engine (4) and the control unit is designed to allow or prohibit the energised stoppage of the engine (4), in the economical operating mode, according to said stored data.

Systems and methods for auxiliary battery charging

A vehicle includes an engine, an alternator, and a battery bank electrically connected to the alternator via a connection line. The connection line includes a current sensor configured to measure an electrical current through the connection line. The vehicle also includes a start-stop system configured to determine, during a time when the engine is off, that a voltage of the battery bank is below a first threshold value for a first predetermined period, provide a control signal to a starter to start the engine to initiate charging of battery bank, determine, by the current sensor, that the electrical current is below a second threshold value, and in response to the determination, provide a control signal to turn the engine off to terminate the charging of the battery bank.

METHODS AND SYSTEMS FOR START/STOP

Methods and systems are provided for a start/stop feature. In one example, a method includes adjusting start/stop conditions in response to a vehicle operator customizing start/stop conditions. The vehicle operator customizes start/stop conditions for a plurality of different driving conditions.

Method and system for producing an active short circuit condition in an electric motor of a hybrid electric vehicle
11462920 · 2022-10-04 · ·

A system for producing an active short circuit in an electric motor of a hybrid electric vehicle having a traction battery includes an inverter to be provided in communication with the motor and battery, and an inverter controller to generate driver signals to operate inverter switches to produce three-phase AC for the motor or to produce DC for battery charging. In response to motor speed exceeding a threshold, the controller is configured to generate driver signals to operate the inverter switches to produce an active short circuit in the motor to prevent battery overcharging. A processor and electric circuit are each configured to independently generate an active short circuit control signal operative to effectuate generation of the driver signals, the active short circuit produced based on an active short circuit control signal from the electric circuit in an absence of an active short circuit control signal from the processor.

System for variably controlling engine-on line in consideration of cooling after FATC engine is turned on

A control method capable of variably applying an existing engine-on line includes: a prediction degree calculation unit to predict a degree to which a temperature of a coolant at a current point after the engine is turned off reaches a target temperature by a request of full automatic temperature control (FATC); a factor determination unit to set reference ranges divided based on an extent that the temperature is close to the target temperature, and to determine a factor value for each reference range so that a predetermined existing engine-on line or a predetermined existing engine-off line is varied by required power; and an engine on/off line determination unit configured to determine a corrected engine-on line or a corrected engine-off line by calculating the existing engine-on line or the existing engine-off line and the factor value in the reference range in which a calculation value is positioned.

On-demand generator starting system

An on-demand generator starting system and method is disclosed. The generator starting system is included as part of a standby or portable generator that includes one or more outlets that provide electrical power to an electrical device. The operating system includes a generator controller that monitors for a request for power from the electrical device connected to the outlet. When the control circuit of the generator controller determines that electric power is required from the generator, the control circuit initiates operation of the internal combustion engine. After the internal combustion engine starts, the control circuit operates a relay to provide power from the generator to the outlet of the generator. When the electrical device is no longer operating, the control circuit of the generator controller terminates operation of the internal combustion engine of the generator. In this manner, the generator operates only when the electrical device is requesting electrical power.

Vehicle control device

The present disclosure provides a vehicle control device including: a fluid circuit, mutually connecting an engine, a vehicle cabin interior heat exchanger for discharging heat into a vehicle cabin interior, and a heat discharging heat exchanger included in a refrigerant cycle in which a refrigerant is compressed and expanded by a compressor, and in which a fluid circulates; and a control unit for controlling the compressor and the engine such that, in a case in which engine warm-up operation ending conditions have not been established and in a case in which predetermined stopping conditions, other than the warm-up operation ending conditions, for stopping engine idling have been established, the compressor is operated while the engine is idling so as to release heat from the refrigerant from the heat discharging heat exchanger and to heat the fluid.

METHOD AND SYSTEM FOR PRODUCING AN ACTIVE SHORT CIRCUIT CONDITION IN AN ELECTRIC MOTOR OF A HYBRID ELECTRIC VEHICLE
20210242705 · 2021-08-05 · ·

A system for producing an active short circuit in an electric motor of a hybrid electric vehicle having a traction battery includes an inverter to be provided in communication with the motor and battery, and an inverter controller to generate driver signals to operate inverter switches to produce three-phase AC for the motor or to produce DC for battery charging. In response to motor speed exceeding a threshold, the controller is configured to generate driver signals to operate the inverter switches to produce an active short circuit in the motor to prevent battery overcharging. A processor and electric circuit are each configured to independently generate an active short circuit control signal operative to effectuate generation of the driver signals, the active short circuit produced based on an active short circuit control signal from the electric circuit in an absence of an active short circuit control signal from the processor.