Abstract: Methods and systems are described for a hybrid vehicle with a passive prechamber combustion engine. The system includes a passive prechamber combustion engine, an electric motor, and a controller communicatively coupled to the combustion engine and the electric motor. The combustion engine is configured to operate at engine loads satisfying a load threshold. The controller is configured to determine whether an engine load falls below the load threshold. The controller is configured to select the electric motor to propel the vehicle. The controller is configured to determine whether the engine load satisfies the load threshold. The controller is configured to select the combustion engine to propel the vehicle for providing efficient fuel consumption associated with prechamber ignition in response to determining that the engine load satisfies the load threshold.

Abstract: A hybrid electric vehicle (HEV) for multiple operation modes includes: a gasoline diffusion flame (GDF) combustion engine configured to perform gasoline diffusion flame combustion; a motor-generator operatively connected to the GDF combustion engine and configured to selectively drive the HEV with electric power of a battery or generate electric power to charge the battery; and a multi-mode controller including a processor and configured to receive operating conditions of the GDF combustion engine and the motor-generator and define a plurality of mode operating regions based on the received operating conditions. In particular, the plurality of mode operating regions includes: an electric vehicle (EV) only mode operating region, a GDF mode operating region where the GDF combustion engine operates and drives the HEV while the motor-generator stops, and a GDF+EV mode operating region where the motor-generator assists the operation of the GDF combustion engine to drive the HEV.

Abstract: A hybrid electric vehicle (HEV) for multiple operation modes includes: a gasoline diffusion flame (GDF) combustion engine configured to perform gasoline diffusion flame combustion; a motor-generator operatively connected to the GDF combustion engine and configured to selectively drive the HEV with electric power of a battery or generate electric power to charge the battery; and a multi-mode controller including a processor and configured to receive operating conditions of the GDF combustion engine and the motor-generator and define a plurality of mode operating regions based on the received operating conditions. In particular, the plurality of mode operating regions includes: an electric vehicle (EV) only mode operating region, a GDF mode operating region where the GDF combustion engine operates and drives the HEV while the motor-generator stops, and a GDF+EV mode operating region where the motor-generator assists the operation of the GDF combustion engine to drive the HEV.

Abstract: A coolant flow control management system includes an integrated pump coolant flow control and heat exchange device for delivering engine coolant to and from the engine. According to the system, coolant flows from the engine and is delivered back to the engine after passing through various coolant branches while flow is regulated by a control valve part of said device, then passes through a heat exchanger part before being returned to the engine by a pump part. Systems of the invention are particularly useful with all-electric and hybrid vehicles.

Abstract: A coolant flow control system includes an integrated pump for delivering an engine coolant to an engine, coolant flow control and heat exchange device. According to the system, coolant flow from the engine is delivered back to the engine after passing through the valve body part and then the heat exchange part in which it passes over the heat exchange part. Systems of the invention are particularly useful with all-electric and hybrid vehicles.

Abstract: A coolant flow control management system includes an integrated pump coolant flow control and heat exchange device for delivering engine coolant to and from the engine. According to the system, coolant flows from the engine and is delivered back to the engine after passing through various coolant branches while flow is regulated by a control valve part of said device, then passes through a heat exchanger part before being returned to the engine by a pump part. Systems of the invention are particularly useful with all-electric and hybrid vehicles.