Punch Powertrain DHT Hybrid Transmission for Small Cars Debuts at CTI 2025

On December 17, Punch Powertrain presented its Punch Powertrain DHT hybrid transmission designed specifically for compact A- and B-segment vehicles at the CTI Symposium 2025 in Berlin. The technology addresses growing industry pressure around affordability, emissions compliance, and drivetrain simplification while targeting high-volume passenger car platforms.
Compact and Scalable Hybrid Architecture for Mass-Market Vehicles
The Punch Powertrain DHT hybrid transmission has been engineered as a compact and scalable solution suitable for global production programs. Its design focuses on reducing system cost and packaging constraints without compromising efficiency, making it suitable for OEMs operating in cost-sensitive vehicle segments.
Key design priorities include:

• Optimized footprint for small vehicle platforms

• High production scalability

• Lower system complexity with improved efficiency

Multi-Mode Hybrid Operation in a Single Transmission
Punch Powertrain demonstrated that the DHT system integrates multiple drive modes within a single transmission architecture. The system supports:

• Series hybrid driving

• Parallel hybrid driving

• Fully electric operation

By dynamically switching between modes, the transmission ensures that the vehicle consistently operates in its most energy-efficient state. This delivers smooth, EV-like drivability while lowering fuel consumption and reducing carbon dioxide emissions.
Software-Led Control and Modular System Design
A strong emphasis was placed on software-based system management. The Punch Powertrain DHT hybrid transmission uses advanced control strategies to manage power flow, enabling precise optimization across different driving conditions. Its modular and flexible architecture allows OEMs to deploy the same core hardware across multiple electrified powertrain variants.
This common platform approach supports:

• Full hybrid vehicles

• Plug-in hybrid vehicles

• Extended-range electric vehicles

The use of shared hardware and software significantly reduces development time and manufacturing complexity.
Proven Performance in Real-World Testing
According to real-world validation results presented at the event, the DHT system delivers performance and efficiency levels comparable to established hybrid solutions already in the market. These results confirm its suitability for large-scale deployment across global passenger car programs where cost, efficiency, and regulatory compliance are critical decision factors.