Weitere Kapitel dieses Buchs durch Wischen aufrufen
Already in Chaps. 1 and 6 electrification was briefly touched. This chapter is dedicated to electric and hybrid propulsion. The reasons for having an extra chapter are:
Specifics of electric drives as standalone propulsion in combination with internal combustion engines are subject of this chapter. In this sense and context, electric propulsion is defined as the system of an electric motor, the matching power electronics as well as the required sensors and safety concepts.
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This book covers exclusively applications with electric or hybrid-electric propulsion. The principles and mechanisms can be easily transferred to other hybrid concepts, e.g., hydraulic hybrids.
Other than electric hybrids would be possible as well.
Depending on the markets, tax reductions and other incentives might apply additionally.
Data is retrieved from the study “Mobility in Germany” (MID).
Fly-wheel storage systems might be purely mechanically connected. A pressure storage system for hydraulic or pneumatic systems is also based on physical–mechanical principles. A broad utilization for passenger cars is based on today’s prognosis unlikely.
Using four motors torque vectoring is possible to enhance driving performance and vehicle stability.
Which are defined by the used transmissions, dependent on the technologies with discrete or continuously variable ratios.
Efficiencies for the mechanical path are covered in Sect. 1.3.
Furthermore, efforts are taken to bridge the times of ICE shut-off, e.g., heat storage or cold sinks for vehicle climatization.
Planetary gear sets arranged in this way are well established for transmission in commercial vehicles, see Sect. 8.2.4.
The continuously variable adjustment of the ratios allows in many operation conditions to operate the ICE in areas of low specific fuel consumption, see Sect. 1.3.
This requires fast and precise evaluation of the speeds of the electric machine as well as sufficient dynamics of the power electronics for the electric machine and the actuation system for the dog clutches.
- Power Train Electrification
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