Research Review: Improved Hybrid DCT Control

A common approach when designing control system algorithms for Dual Clutch Transmission Systems (DCT) is to make use of fixed sequences (sequence-based) to perform specific actions, such as shifting. However, a fixed sequence becomes quite inflexible when presented with a ‘change of mind’, a request to change the event being executed and execute a different one. Ultimately, this can lead to a less robust system and introduce quality issues. The introduction of electrification into the powertrain can aggravate the issue further as functionality becomes even more complex.

As a result Drive System Design developed a new, non-sequenced architecture to achieve improved control of the HDCT unit. In this Research Review, we highlight the challenges of a sequenced-based architecture and the benefits and opportunities of Drive System Design’s alternative solution. Please click on the image below to find out more.