To deliver crucial transmission control software for dual-clutch transmission with a lead 2020 model year application in compact luxury crossover SUV
China Euro Vehicle Technology AB (CEVT) developer of mobility solutions for the Geely Group brands has selected Ricardo to deliver the safety-critical transmission control software. This seven-speed dual clutch transmission with a lead 2020 model year application will be fitted in a compact luxury crossover SUV, the company noted.
Ricardo developed the software according to a ‘systemised track’ approach, in which the vehicle level requirements were used to define the software of the transmission controller. A thorough approach to software engineering was used, conforming to industry standard ‘A-Spice Level 2,’ Ricardo noted. This included testing at a software module, transmission system and vehicle level, and providing full traceability between the specification of each vehicle-level requirement, the point at which it has been implemented in software, and the test procedures and results. This approach is key to providing a long-term robust and maintainable production software implementation, the company observed.
In addition, the control software was developed according to ISO26262 Road vehicles – Functional safety standard to provide in-built monitoring functionality. This standard ensures that in the event of software or hardware-related fault, the maximum operational availability of the transmission is maintained that is compatible with its safe operation.
Andy Beaumont, Project Director, Ricardo, said the company is pleased to have been able to deliver the production software for CEVT’s DCT in its launch vehicle product. Production software engineering for road vehicles requires a robust and systemic approach to ensure the required level of operational performance, fault tolerance and safety, while also providing the flexibility required of a modern automotive model year product development programme, he added. Beaumont noted this is an area in which Ricardo excels and aims to maintain its position at the forefront of technology as, through electrification and hybridisation, the software demands of vehicles and their onboard electronic systems become ever more complex.
The company was impressed with the speed, flexibility and robustness of the work carried out by Ricardo on this project, noted Chao Zhang, Director, Project Controls & Calibration, China Euro Vehicle Technology AB. He said that as a supplier, Ricardo hit every timing milestone, provided the specified releases we required for winter and summer testing, and resolved all critical issues identified well ahead of the start of production date.