Simulation system for automotive prime mover
First Claim
1. A simulation system for an automotive internal combustion engine, comprising:
- a low inertia power generator including power generating means having relatively high inertia and inertia reducing means for reducing the inertia of said power generating means;
an engine characteristic generator receiving predetermined engine operation parameter simulated data for deriving a first signal indicative of a first output torque to be derived as an output of said low inertia power generator according to a preset engine output torque variation characteristic which is set in terms of said engine operation parameter simulated data;
first means for deriving a first correction value indicative of a first compensation torque to be compensated at the output of said low inertia power generator in view of a set engine inertia;
second means for deriving a second correction value indicative of a second compensation torque to be compensated at the output of said low inertia power generator in view of a set inertia of said low inertia power generator;
third means for deriving a third correction value based on said first and second correction values, said third correction value indicative of a third compensation torque to be compensated at the output of said low inertia power generator, said third compensation torque compensating a differential in inertia between the engine and the low inertia power generator;
fourth means for deriving a control signal based on said first signal and said third correction value, said control signal fed to said low inertia power generator for controlling operation of said relatively high inertia power generating means so as to provide a second output torque as the output of said low inertia power generator, said second output torque being equivalent to said first output torque.
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Accused Products
Abstract
A simulation system for an automotive internal combustion engine includes a low inertia power generator which includes a direct current motor and a speed increasing device. An engine characteristic generator derives a first signal indicative of a first output torque to be derived as an output of the low inertia power generator. The first output torque is equivalent to that of the engine. A first compensation torque is derived for compensation in view of a set engine inertia. A second compensation torque is further derived for compensation in view of a set inertia of the low inertia power generator. A third compensation torque is further derived based on the first and second compensation torques for compensating a differential in inertia between the engine and the low inertia power generator. A control signal is derived based on the first signal and the third compensation torque. The control signal is fed to the low inertia power generator for controlling operation of the direct current motor so as to provide a second output torque as the output of the low inertia power generator. The second output torque is equivalent to the first output torque. Accordingly, an output characteristic equivalent to that of the engine is provided as the output of the low inertia power generator.
8 Citations
11 Claims
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1. A simulation system for an automotive internal combustion engine, comprising:
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a low inertia power generator including power generating means having relatively high inertia and inertia reducing means for reducing the inertia of said power generating means; an engine characteristic generator receiving predetermined engine operation parameter simulated data for deriving a first signal indicative of a first output torque to be derived as an output of said low inertia power generator according to a preset engine output torque variation characteristic which is set in terms of said engine operation parameter simulated data; first means for deriving a first correction value indicative of a first compensation torque to be compensated at the output of said low inertia power generator in view of a set engine inertia; second means for deriving a second correction value indicative of a second compensation torque to be compensated at the output of said low inertia power generator in view of a set inertia of said low inertia power generator; third means for deriving a third correction value based on said first and second correction values, said third correction value indicative of a third compensation torque to be compensated at the output of said low inertia power generator, said third compensation torque compensating a differential in inertia between the engine and the low inertia power generator; fourth means for deriving a control signal based on said first signal and said third correction value, said control signal fed to said low inertia power generator for controlling operation of said relatively high inertia power generating means so as to provide a second output torque as the output of said low inertia power generator, said second output torque being equivalent to said first output torque. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification