A Hybrid-Electric Power Transmitting Unit for 4x4 Vehicle Applications: Modeling and Simulation

2014 ◽  
Author(s):  
Vladimir V. Vantsevich ◽  
Jesse R. Paldan ◽  
Jeremy P. Gray
Keyword(s):  
Mathematical Model ◽  
Electric Power ◽  
Eddy Current ◽  
Hybrid Electric Vehicle ◽  
Planetary Gear ◽  
Electrical Current ◽  
Gear Ratio ◽  
Front Axle ◽  
Mechatronic Systems ◽  
Hybrid Electric

In this paper, a technical concept is described for a hybrid-electric power transmitting unit (HE-PTU) to control the split of power between the drive axles of a 4×4 hybrid-electric vehicle. This new power transmitting unit is a mechatronic systems by its design and uses a planetary gear set and eddy current brake to provide a continuously variable (dynamic) gear ratio that can be integrated into the vehicle driveline between the transfer case and front axle. The paper details the electrical and mechanical characteristics of the device, including its various operation modes, its mathematical model built from the equations of the planetary gear set and eddy current brake, an optimization condition by which the device will be controlled to improve vehicle energy efficiency, as well as its torque and electrical current usage. Computer simulations are performed on a mathematical model of a 4×4 military truck using the power transmitting unit in conjunction with a series hybrid-electric configuration transmission.

Mobility and Energy Efficiency of Military Tactical Vehicle With Hybrid-Electric Driveline System

2014 ◽  
Author(s):  
Vladimir V. Vantsevich ◽  
Jesse R. Paldan ◽  
Jeremy P. Gray
Keyword(s):  
Mathematical Model ◽  
Eddy Current ◽  
Hybrid Electric Vehicle ◽  
Operation Mode ◽  
Planetary Gear ◽  
Electrical Current ◽  
Gear Ratio ◽  
Front Axle ◽  
Tactical Vehicle ◽  
Hybrid Electric

In this paper, a technical concept is described for a power transmitting unit to control the split of power between the drive axles of a 4×4 hybrid-electric vehicle. This new power transmitting unit uses a planetary gear set and eddy current brake to provide a continuously variable gear ratio that can be integrated into the vehicle driveline between the transfer case and front axle. The paper details the electrical and mechanical characteristics of the device, including its operation mode, its mathematical model built from the equations of the planetary gear set and eddy current brake, the optimization equation by which the device will be controlled to improve vehicle slip efficiency, as well as its torque and electrical current usage. Computer simulations are performed on a mathematical model of a 4×4 military truck using the power transmitting unit in conjunction with a series hybrid-electric configuration transmission.

scholarly journals Dynamics and efficiency of planetary gear sets for hybrid powertrains

2015 ◽  
Vol 230 (7-8) ◽  
pp. 1359-1368 ◽  
Author(s):  
M Mohammadpour ◽  
S Theodossiades ◽  
H Rahnejat
Keyword(s):  
Electric Motor ◽  
Hybrid Electric Vehicle ◽  
Combustion Engine ◽  
Planetary Gear ◽  
Transmission Efficiency ◽  
Drive Mode ◽  
Planetary Gear Sets ◽  
Hybrid Electric ◽  
Noise Vibration ◽  
Six Degree Of Freedom

The paper presents a tribo-dynamic model for planetary gear sets of hybrid-electric-vehicle configurations. The model comprises a six degree-of-freedom torsional multi-body dynamic system, as well as a tribological contact model in order to evaluate the lubricant film thickness, friction and efficiency of the meshing gear teeth contacts. The tribological model takes into account the non-Newtonian, thermal-mixed elastohydrodynamic regime of lubrication. Analysis is performed for a hybrid electric C-segment vehicle. The simulated conditions correspond to cases of power supplied by either the engine or the electric motor. The results illustrate that in the electric motor drive mode, improved noise, vibration and harshness refinement would be expected, whereas better transmission efficiency is achieved in the internal combustion engine drive mode.

Decomposition-Based Design Optimization of Hybrid Electric Powertrain Architectures: Simultaneous Configuration and Sizing Design

2015 ◽  
Author(s):  
Alparslan Emrah Bayrak ◽  
Namwoo Kang ◽  
Panos Y. Papalambros
Keyword(s):  
Hybrid Electric Vehicle ◽  
Power Flow ◽  
Planetary Gear ◽  
Single Mode ◽  
Solution Approach ◽  
Switching Power ◽  
Vehicle Operation ◽  
System Solution ◽  
Hybrid Electric ◽  
Hybrid Electric Powertrain

Effective electrification of automotive vehicles requires designing the powertrain’s configuration along with sizing its components for a particular vehicle type. Employing planetary gear systems in hybrid electric vehicle powertrain architectures allows various architecture alternatives to be explored, including single-mode architectures that are based on a fixed configuration and multi-mode architectures that allow switching power flow configuration during vehicle operation. Previous studies have addressed the configuration and sizing problems separately. However, the two problems are coupled and must be optimized together to achieve system optimality. An all-in-one system solution approach to the combined problem is not viable due to the high complexity of the resulting optimization problem. In this paper we propose a partitioning and coordination strategy based on Analytical Target Cascading for simultaneous design of powertrain configuration and sizing for given vehicle applications. The capability of the proposed design framework is demonstrated by designing powertrains with one and two planetary gears for a mid-size passenger vehicle.

Configuration Study of Hybrid Electric Power Pack for Tracked Combat Vehicles

2017 ◽  
Vol 67 (4) ◽  
pp. 354 ◽  
Author(s):  
P. Sivakumar ◽  
Rajaseeli Reginald ◽  
G. Venkatesan ◽  
Hari Viswanath ◽  
T. Selvathai
Keyword(s):  
Electric Power ◽  
Hybrid Electric Vehicle ◽  
Combustion Engine ◽  
Fuel Efficiency ◽  
Optimal Operation ◽  
Regenerative Braking ◽  
Electric Motors ◽  
Power Train ◽  
Military Vehicles ◽  
Hybrid Electric

<p>In recent years, there is growing interest in hybridisation of military vehicles due to the features and advantages offered by the technology. Generally, the hybrid electric vehicle (HEV) is propelled by a combination of electric motors and internal combustion engine (ICE). Hybrid electric combat vehicles, when compared with conventional vehicles, have the advantages of improved fuel efficiency and drivability due to optimal operation of ICE, regenerative braking and silent operation capability. Limitations related to key technologies such as compact electric motors/generators, power electronics and energy storage systems that are required to operate under extreme environmental conditions pose challenges to the development of hybrid electric power pack. Technical challenges of HEV technologies considering futuristic applications of combat vehicles is described. The configuration specification of hybrid electric power train architecture suited to deliver high automotive performance and power demands for infantry combat vehicles (ICV) is also discussed.</p>

Battery-in-the-Loop Simulation of a Planetary-Gear-Based Hybrid Electric Vehicle

2013 ◽  
Vol 62 (2) ◽  
pp. 573-581 ◽  
Author(s):  
Ehsan Tara ◽  
Shaahin Filizadeh ◽  
Erwin Dirks
Keyword(s):  
Electric Vehicle ◽  
Hybrid Electric Vehicle ◽  
Planetary Gear ◽  
Hybrid Electric

Mechatronics-Based Analysis of a 4x4 Vehicle Lateral Dynamics With Passive and Active Drivelines

2016 ◽  
Author(s):  
Vladimir V. Vantsevich ◽  
Jesse R. Paldan
Keyword(s):  
Electric Power ◽  
Hybrid Electric Vehicle ◽  
Steering System ◽  
Power Splitting ◽  
Hybrid Powertrain ◽  
Lateral Dynamics ◽  
Modeling Analysis ◽  
Hybrid Electric ◽  
Multiple Domains ◽  
Vehicle Lateral Dynamics

This paper presents a mechatronic modeling analysis of a 4×4 hybrid-electric vehicle (HEV) which uses an active driveline system connected to the hybrid powertrain. This active driveline uses a power-splitting device, named a Hybrid-Electric Power-Transmitting Unit (HE-PTU) to control the power split between the front and rear axles. The mathematical model of the active driveline along with two passive drivelines demonstrates the coupling of driveline-steering-system influenced lateral dynamics of the vehicle. Thus, a more flexible, active driveline is able to effectively decouple the driveline and steering systems by producing a compensating torque that influences the tire lateral forces and thus vehicle lateral dynamics. Because of the multiple domains involved in modeling the HE-PTU, a mechatronics-based modeling solution is required to demonstrate the advantage of the active driveline. The mechatronics-based simulation results show how use of the active driveline with a hybrid-electric power transmitting unit can improve the vehicle’s turnability and stability characteristics.

Research on HEV Drive System Based on Composite Electric Power

2014 ◽  
Vol 1044-1045 ◽  
pp. 549-552
Author(s):  
Hao Ming Zhang ◽  
Ying Hai Wang ◽  
Lian Soon Peh
Keyword(s):  
Energy Consumption ◽  
Environmental Pollution ◽  
Electric Power ◽  
Electric Vehicle ◽  
Hybrid Electric Vehicle ◽  
Drive System ◽  
Experimental Results ◽  
Present Problem ◽  
New Type ◽  
Hybrid Electric

Abstract. Hybrid electric vehicle adopt hybrid electric power, can reduce the waster emission and energy consumption, which can solve the present problem of environmental pollution and energy consume. New type HEV based on composite electric power is proposed.To improve the performance of the system, Halbach PMSM is used instead of traditional PMSM, experimental results show its merits.

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