Evaluation of Parallel Executions on Multiple Virtual ECU Systems Hitachi, Limited

Format:

Conference/Event

Author/Creator:

Morishima, Morishima, author.

Contributor:

Miyazaki, Yoshihiro

Sugure, Yasuo

Conference Name:

WCX World Congress Experience (2018-04-10 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2018

Summary:

AbstractWe have developed a cooperative simulation environment for multiple electronic control units (ECUs) including a parallel executions mechanism to improve the test efficiency of a system, which was designed with multiple ECUs for autonomous driving. And we have applied it to a power window system for multiple ECUs with a controller area network (CAN). The power window model consists of an electronic-mechanical model and a CPU model. Each simulator with a different executions speed operates in parallel using a synchronization mechanism that exchanges data outputted from each simulator at a constant cycle. A virtual ECU simulated microcontroller hardware operations and executed its control program step-by-step in binary code to test software for the product version. As co-simulation technology, a mechanism that synchronously executes heterogeneous simulators and a model of an in-vehicle communication CAN connecting each ECU were developed. We have evaluated the simulation speed using multiple virtual power window systems with parallel executions. The simulation speed is 60% faster using parallelization. This method was applied to the ECU model and mechanical model system that was found to work together in a virtual prototyping system. This virtual prototyping system can synchronously execute simulators running on different PCs. This means that a large-scale simulation including a detailed simulation of binary code can be performed by executing a large number of simulators in parallel

Notes:

Vendor supplied data

Publisher Number:

2018-01-0011

Access Restriction:

Restricted for use by site license