4x4 SUV Energy Efficiency and Mobility: Hybrid-Electric Transfer Case vs Mechanical Driveline System

2014 ◽  
Author(s):  
Vladimir V. Vantsevich ◽  
Jesse R. Paldan
Keyword(s):  
Energy Efficiency ◽  
Electric Power ◽  
Electric Vehicle ◽  
Power Distribution ◽  
Hybrid Electric Vehicle ◽  
Optimization Criterion ◽  
Control Power ◽  
Transfer Case ◽  
Vehicle Mobility ◽  
Hybrid Electric

In this paper, an investigation is performed into the optimization of wheel power distribution between the drive axles of an AWD hybrid-electric SUV. The paper presents a criterion to maximize the vehicle’s slip efficiency through control of the kinematic discrepancy factor. The optimization criterion is combined with a mathematical model of a driveline for an AWD hybrid-electric vehicle using a new hybrid-electric power transmitting unit to control power distribution between the front and rear drive wheels. A technical concept is described for the hybrid-electric power transmitting unit that is functionally fused with a series hybrid-electric transmission. The mode of operation of the power transmitting device is described and simulations are performed for a 4×4 hybrid-electric vehicle of different driveline characteristics to compare the influence of driveline type on vehicle energy efficiency, including battery depletion, and vehicle mobility when traveling on a road or off-road under severe terrain conditions.

scholarly journals A Component-Sizing Methodology for a Hybrid Electric Vehicle Using an Optimization Algorithm

Energies ◽  
2021 ◽  
Vol 14 (11) ◽  
pp. 3147
Author(s):  
Kiyoung Kim ◽  
Namdoo Kim ◽  
Jongryeol Jeong ◽  
Sunghwan Min ◽  
Horim Yang ◽  
...  
Keyword(s):  
Energy Efficiency ◽  
Electric Vehicle ◽  
Optimization Algorithm ◽  
Hybrid Electric Vehicle ◽  
New Technologies ◽  
New Technology ◽  
Dynamic Performance ◽  
Minimum Principle ◽  
Component Sizing ◽  
Hybrid Electric

Many leading companies in the automotive industry have been putting tremendous effort into developing new powertrains and technologies to make their products more energy efficient. Evaluating the fuel economy benefit of a new technology in specific powertrain systems is straightforward; and, in an early concept phase, obtaining a projection of energy efficiency benefits from new technologies is extremely useful. However, when carmakers consider new technology or powertrain configurations, they must deal with a trade-off problem involving factors such as energy efficiency and performance, because of the complexities of sizing a vehicle’s powertrain components, which directly affect its energy efficiency and dynamic performance. As powertrains of modern vehicles become more complicated, even more effort is required to design the size of each component. This study presents a component-sizing process based on the forward-looking vehicle simulator “Autonomie” and the optimization algorithm “POUNDERS”; the supervisory control strategy based on Pontryagin’s Minimum Principle (PMP) assures sufficient computational system efficiency. We tested the process by applying it to a single power-split hybrid electric vehicle to determine optimal values of gear ratios and each component size, where we defined the optimization problem as minimizing energy consumption when the vehicle’s dynamic performance is given as a performance constraint. The suggested sizing process will be helpful in determining optimal component sizes for vehicle powertrain to maximize fuel efficiency while dynamic performance is satisfied. Indeed, this process does not require the engineer’s intuition or rules based on heuristics required in the rule-based process.

Energy Efficiency of SR and IPM Generators for Hybrid Electric Vehicle

2015 ◽  
Vol 51 (4) ◽  
pp. 2874-2883 ◽  
Author(s):  
Katsuhiko Urase ◽  
Noboru Yabu ◽  
Kyohei Kiyota ◽  
Hiroya Sugimoto ◽  
Akira Chiba ◽  
...  
Keyword(s):  
Energy Efficiency ◽  
Electric Vehicle ◽  
Hybrid Electric Vehicle ◽  
Hybrid Electric

The Power Distribution Control Study in Parallel Hybrid Electric Vehicle Based on Fuzzy Theory

2014 ◽  
Vol 529 ◽  
pp. 554-558
Author(s):  
Rui Fang Li ◽  
Dong Ya Song
Keyword(s):  
Electric Vehicle ◽  
Output Power ◽  
Power Distribution ◽  
Hybrid Electric Vehicle ◽  
Fuzzy Theory ◽  
Optimization Method ◽  
Parallel Hybrid Electric Vehicle ◽  
Parallel Hybrid ◽  
Hybrid Electric ◽  
Fuzzy Logical

By analyzing the parallel hybrid electric vehicle mode, the optimization of output power to fuel engine and electric motor is discussed. The fuzzy logical rules are proposed by fuzzy control theory. According to the system required power and battery SOC, the engine output power and the motor output power are optimized. The results show that the optimization method based on fuzzy logical can effectively reduces fuel consumption and can well control the battery SOC changes.

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.

Analysis of Power Distribution and Sensitivity for the Power Synthesizer of Hybrid Electric Vehicle

2008 ◽  
Author(s):  
Chunguo Zhou ◽  
Hongzhao Liu ◽  
Yahui Cui
Keyword(s):  
Electric Vehicle ◽  
Power Distribution ◽  
Hybrid Electric Vehicle ◽  
Angular Speed ◽  
Gear Train ◽  
Parallel Hybrid Electric Vehicle ◽  
Differential Gear ◽  
Parallel Hybrid ◽  
Hybrid Electric ◽  
Speed Response

The Power Synthesizer of Parallel Hybrid Electric Vehicle (PHEV) has been the research object. It is composed of the differential gear train, in which its power distribution and sensitivity has been analyzed as main problems. The transmission ratio, torque and power distribution have been analyzed about the gear train. Whatever its structure is, if only the value of structure parameter K is same, then the corresponding relative kinematics relation and mechanics relation of the basic components are same absolutely. The calculation of power distribution among basic components has been introduced. The sensitivity has direct influence to the mobile performance of vehicle, so the angular speed response for output components to input components has been analyzed, and the connecting mode between engine or motor and differential gear train has been bought forward. The analytical results can be helpful for the parameters’ design of kinematics and dynamics of the vehicle, and for the vehicle’s control.

Sign in / Sign up

Export Citation Format

Share Document