Output controller for an engine controller, engine controller, and engine system

Abstract

The invention relates to an output controller for an engine control for an engine system comprising an internal combustion engine and an electric generator coupled to the internal combustion engine; a computer device which is designed to receive a mechanical target output for the engine system and a maximally permissible rotational speed for the generator and to calculate a target rotational speed for the electric generator and an output torque for the internal combustion engine on the basis of the target output and the maximally permissible rotational speed; an inertia compensating device which is designed to calculate a torque transmitted to a shaft of the generator by a mass moment of inertia of the internal combustion engine on the basis of a change of the target rotational speed for the electric generator and to calculate a target torque for the internal combustion engine on the basis of the transmitted torque and the calculated output torque of the internal combustion engine; and an efficiency calculating device which is designed to calculate a degree of efficiency of the engine system on the basis of the target rotational speed for the electric generator, the calculated output torque of the internal combustion engine, a battery voltage and a generator current of a battery of the engine system, and the calculated target torque for the internal combustion engine and to adapt the value for the mechanical target output, which is supplied to the first computer device, on the basis of the calculated degree of efficiency. The invention further relates to an engine controller and to an engine system.

Description

technical field [0001] The invention relates to a power control device for an engine control device of an engine system having a combustion engine and an electric generator coupled to the combustion engine. The invention also relates to a corresponding engine control device and a corresponding engine system. Background technique [0002] In motor vehicle technology attempts are always made to further reduce the fuel consumption of modern motor vehicles. In addition to improving conventional combustion engines, electric motors are always being used more frequently in motor vehicles. In this case, the electric motor can support, for example, a combustion engine. This principle is used in so-called hybrid vehicles. [0003] Alternatively, however, the electric motor can also replace the combustion engine in the motor vehicle. Such motor vehicles are also referred to as electric vehicles, in which the electric motor is the sole drive motor. Due to the limited capacity of th...

AI Technical Summary

Problems solved by technology

Since the rotational speed has to be adjusted due to changes in the combustion engine torque, the power cannot be adjusted efficiently with this configuration

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