The development of a controller confirmation system for automatic transmissions and its applications

The automatic transmission control system has been enforced to be electronicized to ensure the achievement of the lightweight, compact and high performance design. The key part of the control system is the software that installed in the microcomputer chip. Since the scale and complexity of the control software is glowing very rapidly, software confirmation becomes an important technique to assure its quality. In this paper, the outline of a controller confirmation system using the hardware in the loop simulation technique for automatic transmissions is described. Some applications and effectiveness are also demonstrated.