Abstract: A method and apparatus for starting an engine in a hybrid vehicle being driven by an electric motor is disclosed. The motor is operably configured to deliver mechanical power through an automatic transmission to at least one vehicle drive wheel to cause an acceleration of the vehicle. The method involves coupling the engine to the motor to cause an inertial load on the motor thus causing the motor to decelerate to a reduced rotational speed to provide a starting torque to the engine for starting the engine, and causing the automatic transmission to change gear ratio to a target gear ratio associated with the reduced rotational speed while causing the motor to decelerate, the motor being operable to deliver increased torque at the reduced rotational speed, thereby generally maintaining the acceleration of the vehicle.

Abstract: A method for producing a plurality of cost values associated with operating a genset at respective operating points, the genset including an engine coupled to an electrical power generator, the method including assigning weights to each of a plurality of operating conditions associated with operating the genset having a plurality of operating points each comprising an engine speed value and a generator electrical power output value, said weights representing a desired trade-off between said plurality of operating conditions, receiving operating condition values corresponding to each of said plurality of operating conditions, said operating condition values associated with operating the genset at each of the plurality of operating points, and producing the cost values for each operating point by combining said operating condition values in accordance with said weights for each respective operating point.

Abstract: An apparatus for selecting operating conditions of a genset, the apparatus including a processor circuit configured to select a set of operating points from a plurality of operating points of the genset each comprising an engine speed in a generator electrical output value and a plurality of cost values associated with operating the genset at respective operating points such that the sum of the cost values associated with the operating points in said set is minimized and such that the engine speed increases or decreases monotonically with monotonically increasing or decreasing electrical power output values.