EC17 Completed Vehicle VCU Software Functional Development (Podcast)

Cement Mixer Truck (24V/400V Platform) Development (P2 Hybrid + ePTO Hybrid System)

This technical manual outlines the Software Functional Specifications (SRS) and development roadmap for the Vehicle Control Unit (VCU) of a 400V hybrid concrete mixer truck. The architecture is built upon the AUTOSAR Classic Platform, utilizing Model-Based Design (MBD) via MATLAB/Simulink to ensure that the "model is the specification" while generating safety-compliant C code. Central to the system is a Torque Path Management strategy that employs a Winner-Takes-All arbitration hierarchy to coordinate power between the diesel engine and electric motor. To meet the rigorous ISO 26262 ASIL D safety standards, the software implements a three-level E-Gas monitoring structure and specialized functions like e-PTO constant speed control to decouple drum rotation from vehicle speed. Ultimately, the text serves as a strategic blueprint for creating a reproducible and scalable control platform verified through high-fidelity Hardware-in-the-Loop (HIL) testing.

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*Core Technology List:*
1. SCU (Supervisory Controller Unit) Functional Specifications
2. Generator and Controller Functional Specifications
3. Drive Motor and Controller Functional Specifications
4. Premixed Cement System Power Battery Box Functional Specifications
5. High-Voltage Wiring Harness and Connector Functional Specifications
6. DC-DC Converter Functional Specifications
7. High-Voltage Contactors (Relays/Contactors) Functional Specifications
8. High-Voltage Fuses Functional Specifications
9. Electric Cement Premixed Truck Overall Vehicle Functional Specifications
10. Electric Superstructure System Design and Development Project Content and Schedule Planning
11. Vehicle System Integration Design
12. Body Component Design and Development
13. Human-Machine Interface (HMI) Development
14. Vehicle Testing and Verification Plan
15. Electric System Onboard Retrofit and Integration
16. High-Voltage System Architecture Planning
17. Completed Vehicle VCU Software Functional Development
18. Completed Vehicle SCU Functional tuning and development
19. System performance testing
20. System regulatory certification