A new design for Dedicated Hybrid Transmission (DHT) product platform development solution
2022-01-0799
03/29/2022
- Event
- Content
- With increasing pressure from environment problem for reduction in CO2 emissions and stricter fuel targets from road vehicles, OEM around the globe have to electrification their vehicle range to meet increasingly challenging emission standards in recent years and new transmission technologies are gaining more attention in different main market . The actual and future powertrain development has three major directions in order to reduce or avoid emissions in the transportation sector: Hybrid Vehicles: Hybrid Electric Vehicles (HEV), Plug-in HEV (PHEV) Electric Vehicles (EV); Range Extender Electric Vehicle (REEV); Fuel Cell Electric Vehicles (FCEV), Range Extender FCEV (REFCEV). This paper will presents a new type Hybrid transmission which so called “DHT (Dedicated Hybrid Transmission) “ technology for cost-effective HEVs and PHEVs is to permit the design of very compact automatic transmissions with an integrated high-voltage electric motor on the output side of the transmission. The new DHT have 2 speed gear and it has outstandingly economic, mechanically plain and very compact package for the challenging A- and B-Class segment’s fuel consumption and package requirements, all required and state of the art hybrid functionalities can be realized. The new 2 speed DHT is a platform design can easy change adapt to 1 speed DHT, 2 and 1 speed EDS (Electrical Drive System) for EV, and DET (Dedicate Electrical Transmission) for REEV system which can maximum common usage same components in different platform product. This new 2 speed DHT platform design can significantly reduce time to market, product development costs, and production costs and at the same time increase vehicle configuration flexibility.
- Citation
- Xue, X., Guo, R., Jiang, X., and Hong, Z., "A new design for Dedicated Hybrid Transmission (DHT) product platform development solution ," SAE Technical Paper 2022-01-0799, 2022, .