Abstract
This paper presents advanced Compact Hybrid Planetary Transmission Drive (CHPTD) as a solution for the plug-in hybrid electric vehicle (PHEV). Proper architecture and elements were designed to achieve the functions of PHEV. The parameters of powertrain were adjusted and optimized by simulation. Two basic control strategies were selected and analyzed to achieve minimum energy consumption and the proper operation range of battery state of charge (SOC). The very effective operation of the improved powertrain was proved by tests in different driving cycles regarding the traffic both in city and suburb area. The advantage of planetary transmission, which is power summing mechanical unit, was obtained by the proper design and the control of innovative high energy saving electromagnetic clutch-brake device based on classic dual-diaphragm spring system, which also permits to apply multi-speed additional automatic mechanical transmission.
Highlights
As a member of hybrid electric vehicles, the plug-in hybrid plays an affirmative role in both academic and industrial areas
There are more clutches and gearbox equipped in the advanced Compact Hybrid Planetary Transmission Drive (CHPTD), but all the clutches and clutch-brake system are designed with existing friction clutch components, which means the cost is low
This paper presents the method of designing the plug-in hybrid powertrain with planetary transmission
Summary
As a member of hybrid electric vehicles, the plug-in hybrid plays an affirmative role in both academic and industrial areas. There are more clutches and gearbox equipped in the advanced Compact Hybrid Planetary Transmission Drive (CHPTD), but all the clutches and clutch-brake system are designed with existing friction clutch components, which means the cost is low. In CHPTD, all operating modes, which are pure electric start, pure engine drive, hybrid drive and regenerative brake, are available. 4-Speed gearbox this clutch-brake system, such as diaphragm spring, friction plate, bearing, are available from existing dry friction clutch Using these elements, authors designed a new configuration of clutch-brake system (see Figure 2). Several sets of clutch-brake system are used together with mechanical transmission for changing operating modes of the powertrain and adjusting gear ratio. It provides the possibility and flexibility for advanced control strategies of the CHPTD. With a properly shifting gearbox, the efficiency of regenerative braking can be improved as well
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