Abstract
Conventional engine based vehicles inevitably have complicated structures due to lots of elements. Because of this characteristic, research, development, and also marketing are mainly conducted by the conglomerate, like GM, BMW, Honda, and Hyundai motors, etc. But environmental pollution and fuel exhaustion by the stated vehicle increase the necessity of EV(Electric Vehicle) as a representative of green car. First of all, the structure of EV is relatively simple, and energy transmission ratio of electric motor is more efficient than the engine based power train system. In addition to these, inwheel EV can estimate exact wheel torque, which is the most fundamental information for slip control, such as VDC(Vehicle dynamics control)/TCS(Traction control system)/ABS(Anti-lock brake system). Various kinds of expectable situations during EV’s navigation have been simulated through the coordination between ‘Carsim’ and ‘Simulink’.
Highlights
Most of car-manufacturers have concentrated on EV by the social needs to the green vehicles
In-wheel EV is mainly researched by the traditional motor manufacturer, especially Protean[1], Michelin[2], AISIN[3], NTN[4], etc
Slip control of in-wheel EV is mainly conducted by Hori lab, the university of Tokyo[5]
Summary
Most of car-manufacturers have concentrated on EV by the social needs to the green vehicles. Direct torque transmission structured EVs consist of in-wheel type and in-axis type. Both kinds of structures have their own pros and cons, such as inwheel EV could be controlled wheel by wheel, so this structure guarantees high stability, smooth cornering and ABS-like system through optimal torque distribution to each wheel. Various kinds of expectable situations during the EV’s navigation have been simulated through the collaboration between ‘ Carsim ’ and ‘ Simulink ’. Carsim’s fundamental features are highly focused at conventional power-train system, engine torque converter-transmission-differential gear-wheel. In. order to simulate in-wheel EV, make practical motor modeling in Simulink, and insert it into the in-wheel EV’s power train instead of engine in the conventional power train system.
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