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In electric and hybrid-electric vehicle applications, power electronic converters are used to couple the traction machine with the battery stack. The simplest topology consists of an inverter between the battery stack and the machine. In an often discussed alternative, a DC-DC converter is used to feed the traction machine with a higher and stable voltage level. This paper deals with the differences...
This paper presents an analysis of two different control strategies applied to a bidirectional dc-dc boost converter in a permanent magnet synchronous motor drive for hybrid electric vehicles. A constant rated voltage-fed inverter and a variable voltage control strategy that takes into account the motor mechanical speed to adjust the dc-dc converter output voltage are considered. Moreover, single...
This paper deals with the experience gained from the conversion of a conventional vehicle to a hybrid electric vehicle (HEV).The resulting concept vehicle is a hybrid SUV that features an additional electric drivetrain, which is composed of a three - phase asynchronous motor, a battery pack, the power converters and the transmission system. The placement of the electric and the conventional propulsion...
A dual-voltage 42 V/14 V Power-Net system of an ISG HEV is proposed, modeled and simulated in Simulink in this paper in order to analyze the change of the voltage of the dual-voltage power system, SOC of the battery and so on under some transient conditions as the engine starting, the transition from electric to generating mode for ISG motor and the sudden change of electrical loads when acceleration...
A distributed control system comprising a TTCAN (Time Triggered Controller Area Network) and a J1939 CAN (Controller Area Network) is proposed for a PEM (Proton Exchange Membrane) fuel cell / Ni-MH battery hybrid vehicle. A current-regulated DC/DC (Direct Current to Direct Current converter) is used to control the output power of the fuel cell. The work of the hybrid power train is coordinated by...
This paper deals with the optimized control strategy within the vehicle which is driven by a fuel cell stack hybrid with a NiMH battery. The aim is the instantaneous energy management to optimize the hydrogen consumption. At first the powertrain was modeled using data on testbed. Then the optimization control problem basing on an equivalent hydrogen consumption strategy is defined, where the motor...
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