Hino Motors, Ltd.

Yasunori Urano

Hitoshi Takada

Yutaka Nakano

The present invention makes it possible to cope with a plurality of standardized transient operation modes in a method for adapting the engine transient characteristic to a required performance targets and a system therefore. When there are a plurality of prescribed standardized transient operation modes, transient testing is conducted in a single transient operation mode that covers changing patterns of control values of control factors of the plurality of transient operation modes. Only data in a data distribution range to be focused on is captured to create a transient engine model.

Transient engine performance adaptation method and system

A method and a system for adaptation of transient engine performance capable of reducing a time for the transient test of an engine and also reducing a man-hour for preparing control software for the engine, wherein the test is performed by using the actual engine in a transient state in which the rotation speed and torque of the engine vary in time sequence. Output data as the results of the test is taken in, and the relation of the output data with the controlled values of the control factors given to the engine is taken to generate a transient engine model in which the relation of the output to the input of the engine is described. By using the prepared transient engine model, a simulation is performed to know the requirements of a target performance which can be satisfied by changing the controlled values of any of the controlled factors to provide control data meeting the requirements of the target performance. The control logic of an engine control circuit is prepared by using the control data.

Growing community of inventors

Tokyo, Japan

Yasunori Urano