Efficiency of the planetary gear hybrid powertrain

Cho, Sungtae; Ahn, Kwangsu; Lee, Jang Moo

doi:10.1243/09544070jauto176

Cited by 41 publications

(31 citation statements)

References 5 publications

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“…To determine the mechanical efficiency, it will be taken into account both friction and meshing losses [6], [9].…”

Section: Torque and Associated Power Flow Analysis Of The Basic Planementioning

confidence: 99%

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Kinematic and dynamic analysis of planetary mechanisms with two degrees of freedom used for power sources coupling

Tudor¹,

Florescu²

2017

BUP-JAUTO

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Abstract. In this paper we perform a review of the planetary gear trains with two central gears, and a planet carrier, used for power sources coupling. The kinematic and dynamic analysis was determined for a simple planetary gear mechanism, with two degrees of freedom formed by two gears that are in external meshing. For the same planetary mechanism, it was determined the mechanical efficiency and the associated internal powerflow direction, which helps identify the planetary gear train with the highest mechanical efficiency.

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“…To determine the mechanical efficiency, it will be taken into account both friction and meshing losses [6], [9].…”

Section: Torque and Associated Power Flow Analysis Of The Basic Planementioning

confidence: 99%

“…[2]. The mechanical efficiency expressions for this planetary mechanism are [2], [4], [6], [8], [9]: Table 1. Mechanical efficiency for .…”

Section: The Mechanical Efficiency and The Power -Flow Direction For mentioning

confidence: 99%

Kinematic and dynamic analysis of planetary mechanisms with two degrees of freedom used for power sources coupling

Tudor¹,

Florescu²

2017

BUP-JAUTO

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“…In order to work out the torque relation between engine and ring gear, we take item 1 as a transform item, so we have the following equation: From equation (17) , we can figure out the torque 2 T that engine and generator act on ring gear.…”

Section: Kinematics and Dynamics Analysis Of Planet-gear Power Comentioning

confidence: 99%

“…In the equation (2) i is transmission ratio from transmission chain to the wheels, 0  is transmission efficiency from transmission chain to the wheels, 2 T is the torque act In order to calculation 2 T of equation (7), it is needed to carry out kinematics and dynamics analysis on power coupling mechanism.…”

mentioning

confidence: 99%

Driving Resistance Factor Calculating Method for Parallel-Serial HEV

Guo

2012

International Journal on Smart Sensing and Intelligent Systems

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Abstract-HEV's energy control strategy cannot be regulated perfectly according to the variable working condition, because the driving resistance is difficult to measure and calculate during the driving process. By taking parallel-serial HEV which power coupling mechanism is planet-gear as research object, analyzed planet-gear power coupling mechanism's dynamics characteristic and efficiency characteristic, put forward driving resistance factor's concept and measure-calculating methods. The factor can be used to evaluate HEV's driving resistance under different load and road INTERNATIONAL JOURNAL ON SMART SENSING AND INTELLIGENT SYSTEMS, VOL. 5, NO. 4, DECEMBER 2012 973 gradient condition. The experiment results show that the maximum relative error of driving resistance factor's average value between theory calculating and experiment testing is 6.36%, which is found in the large driving resistance working condition that the vehicle load is 305 kg, the road gradient is 5.2495°.

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“…The one-mode EVT is the major framework of the hybrid fleet from Toyota, Ford and Nissan [16][17][18]. Another major EVT design on the market is the Allison Hybrid System, also known as AHSII [19].…”

Section: Strong or Full Hybridmentioning

confidence: 99%

Traction Motor Sizing for Optimal Fuel Economy in Propulsion Hybridization

Liao

Quail²

2012

TOMEJ

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This paper presents the traction motor sizing for optimal urban fuel economy in two mild and three strong hybridization propulsion on front-wheel-drive vehicles. The traction motor sizes, by means of motor rated torque and speed, are optimized for maximum urban fuel economy. The two mild hybrids are Belt-Integrated-Starter-Generator (B-ISG) and Crankshaft-Integrated-Starter-Generator (C-ISG) systems. The three strong hybrid configurations include a strong C-ISG system where motor is placed between a starting clutch and the transmission, one-mode Electric Variable Transmission (EVT), and two-mode EVT. Using the simulated vehicle performance data as constraints and the motor rated torque and speed as the design variables, the objective function is to maximize the urban fuel economy. The purpose of this study is to provide a design guideline for hybrid propulsion configurations and component sizing of the traction motors.

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Efficiency of the planetary gear hybrid powertrain

Cited by 41 publications

References 5 publications

Kinematic and dynamic analysis of planetary mechanisms with two degrees of freedom used for power sources coupling

Kinematic and dynamic analysis of planetary mechanisms with two degrees of freedom used for power sources coupling

Driving Resistance Factor Calculating Method for Parallel-Serial HEV

Traction Motor Sizing for Optimal Fuel Economy in Propulsion Hybridization

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