Kinematic Analysis of V-Belt CVT for Efficient System Development in Motorcycle Applications

Continuous variable transmission (CVT) is a widely used technology for two-wheeler applications due to its cost-effectiveness, lightweight, and reduced size. This kind of transmission involves the accurate matching of the system with the engine characteristics. This paper analyzes the typical design procedure used to develop the transmission system and evaluates the current approach’s critical issues. The paper aims to identify a possible path to improve the system and its customization capacity. It is identified that the critical design stage is the identification of the correct sliding profile for the half pulley of the front assembly of the system. Then, the geometrical parameters of the transmission are accurately identified through a detailed kinematic analysis. The presented kinematic analysis is propaedeutic for developing a mathematical model that defines the rollers’ sliding profile according to the vehicle’s performance.

Fault analysis on continuous variable transmission using DB-06 wavelet decomposition and fault classification using ANN

This study aims at developing a novel method for condition monitoring technique for detection and classification of developing faults and increase the working life of continuous variable transmission (CVT) using Daubechies Wavelet 06 (DB-06). The vibration data is collected for 4 different types of faults and healthy condition. Using a magnetic accelerometer and signal analyser, vibration data is collected from the system in the time-domain which is then used as input for a MATLAB code producing the plot of the frequency-domain signal. Maximum frequency is determined to diagnose the faults which are induced over three different belts. Collected data for large scale automotive system (CVT) is used to train the network and then it is tested based on random data points. Faults were classified using ANN with a classification rate of 90.8 %.

Integrated control strategy of tractor hydromechanical continuously variable transmission

Given the transmission efficiency fluctuation and response lag problem of hydromechanical continuous variable transmission combined with the complex and variable working environment of a tractor, an integrated control strategy of engine throttle compensation–hydromechanical continuous variable transmission speed regulation is adopted for dual-flow transmission control. On the basis of the estimation of working resistance, a fuzzy algorithm is used to design the throttle compensation law. Considering the maximum driving power of a tractor as the target of variable speed control, an hydromechanical continuous variable transmission efficiency model is established, and the control law of an hydromechanical continuous variable transmission displacement ratio with the maximum driving power of the tractor under any working condition is determined. On the basis of the wavelet neural network proportional–integral–derivative algorithm, the control law of the hydromechanical continuous variable transmission speed regulation is designed, and the parameters of proportional–integral–derivative control are corrected in real time during the control process. Based on MATLAB/Simulink modelling and simulation and the real vehicle verification test, results showed that the influence of hydromechanical continuous variable transmission efficiency fluctuation on the driving power of the entire vehicle, the response lag of the pump-controlled motor system, and the effect of the leakage on the variable speed control and the fluctuation of the working resistance are solved by studying the hydromechanical continuous variable transmission variable speed transmission control strategy. This strategy improves the stability of the tractor speed and ensured the quality of the work, thereby improving the ability of the tractor to adapt to complex working environments.

ANALISIS STABILITAS RANCANGAN GANESHA ELECTRIC VEHICLES 1.0 GENERASI 1 BERTRANSMISI CONTINOUS VARIABLE TRANSMISION (CVT) MENGGUNAKAN METODE QUASI STATIS

Penelitian ini bertujuan untuk mengetahui kesetabilan kendaraan dengan melakukan pengamatan terhadap batas kecepatan kendaraan yang diijinkan saat berbelok dengan sudut tertentu. Parameter tersebut diukur untuk dapat mengetahui kecepatan kritis dimana kendaraan akan skid dan mengalami rolling speed. Dengan mengetahui kecepatan kritis kendaraan akan membantu pengemudi untuk mengendalikan kecepatan kendaraan pada saat berbelok pada radius belok tertentu. Hasil dari penelitian Analisis Stabilitas Belok Rancangan Kendaraan Ganesha Electric Vehicles 1.0 Generasi 1 Bertransmisi Continous Variable Transmision (CVT) Dengan Menggunakan Metode Quasi Statis Berbasis Microsoft Visual Studio Dengan Bahasa Pemrograman C# yaitu kendaraan cendrung mempunyai prilaku responsif pada saat berbelok yaitu oversteer pada saat kecepatan konstan dan terjadi skid pada kecepatan 20 km/jam dan rolling speed baru akan terjadi pada kecepatan 30 km/jam dimana; skid depan terjadi pada sudut belok depan (αf) = 420 dengan kecepatan skid depan (Vsf)= 10,9 km/jam,dan kendaraan mengalami rolling speed pada sudut belok depan (af)= 390 dengan kecepatan rolling speed (Vg)= 22,4 km/jam. Kata Kunci : Kata kunci : rolling speed , skid, stabilitas, sudut belok. This study aimed to determine the vehicle stability by observing the speed limit allowable vehicle when turning at an angle . These parameters were measured in order to determine critical speed where the vehicle will skid and experience rolling speed.By knowing the critical speed of the vehicle will help the driver to control the vehicle's speed at the time to turn at certain turning radius. The results of the study Stability Analysis Turn draft Vehicles Ganesha Electric Vehicles 1.0 Generation 1 transmission Continuous Variable Transmission (CVT) Method Using Quasi Static-based Microsoft Visual Studio with programming language C # that vehicle tends to have behavioral responsiveness during turns that oversteer during constant speed and skid occurs at a speed of 20 km / h and the rolling speed will occur at a speed of 30 km / h where; front skid occurred on a front turn angle (αf) = 420 with front skid speed (Vsf) = 10.9 km / h, and the vehicle is rolling speed at the next turn angle (af) = 390 with a speed of rolling speed (Vg) = 22 , 4 km / h. keyword : Keywords : angle of turn , rolling speed, skid,stability.

ANALISIS STABILITAS RANCANGAN GANESHA ELECTRIC VEHICLES 1.0 GENERASI 1 BERTRANSMISI CONTINOUS VARIABLE TRANSMISION (CVT) MENGGUNAKAN METODE QUASI STATIS

Penelitian ini bertujuan untuk mengetahui kesetabilan kendaraan dengan melakukan pengamatan terhadap batas kecepatan kendaraan yang diijinkan saat berbelok dengan sudut tertentu. Parameter tersebut diukur untuk dapat mengetahui kecepatan kritis dimana kendaraan akan skid dan mengalami rolling speed. Dengan mengetahui kecepatan kritis kendaraan akan membantu pengemudi untuk mengendalikan kecepatan kendaraan pada saat berbelok pada radius belok tertentu. Hasil dari penelitian Analisis Stabilitas Belok Rancangan Kendaraan Ganesha Electric Vehicles 1.0 Generasi 1 Bertransmisi Continous Variable Transmision (CVT) Dengan Menggunakan Metode Quasi Statis Berbasis Microsoft Visual Studio Dengan Bahasa Pemrograman C# yaitu kendaraan cendrung mempunyai prilaku responsif pada saat berbelok yaitu oversteer pada saat kecepatan konstan dan terjadi skid pada kecepatan 20 km/jam dan rolling speed baru akan terjadi pada kecepatan 30 km/jam dimana; skid depan terjadi pada sudut belok depan (αf) = 420 dengan kecepatan skid depan (Vsf)= 10,9 km/jam,dan kendaraan mengalami rolling speed pada sudut belok depan (af)= 390 dengan kecepatan rolling speed (Vg)= 22,4 km/jam. Kata Kunci : Kata kunci : rolling speed , skid, stabilitas, sudut belok. This study aimed to determine the vehicle stability by observing the speed limit allowable vehicle when turning at an angle . These parameters were measured in order to determine critical speed where the vehicle will skid and experience rolling speed.By knowing the critical speed of the vehicle will help the driver to control the vehicle's speed at the time to turn at certain turning radius. The results of the study Stability Analysis Turn draft Vehicles Ganesha Electric Vehicles 1.0 Generation 1 transmission Continuous Variable Transmission (CVT) Method Using Quasi Static-based Microsoft Visual Studio with programming language C # that vehicle tends to have behavioral responsiveness during turns that oversteer during constant speed and skid occurs at a speed of 20 km / h and the rolling speed will occur at a speed of 30 km / h where; front skid occurred on a front turn angle (αf) = 420 with front skid speed (Vsf) = 10.9 km / h, and the vehicle is rolling speed at the next turn angle (af) = 390 with a speed of rolling speed (Vg) = 22 , 4 km / h. keyword : Keywords : angle of turn , rolling speed, skid,stability.

Study and Analysis of a Multi-Mode Power Split Hybrid Transmission

A two-motor power-split dedicated hybrid transmission (DHT) with two planetary gears is proposed for the applications of a hybrid electric vehicle (HEV) and plug-in HEV (PHEV). The proposed DHT can provide electronically controlled continuous variable transmission (eCVT) with two different gear ratios. One of two electric motors is employed to act as a speeder for splitting the input power of internal combustion engine (ICE) and the other acts as a torquer to assist ICE for boosting. Assisted by an electric motor, ICE can always be enhanced to operate at its efficient area for the benefits of fuel economy improvement. The maximum ICE torque is viable to be mechanically transmitted to vehicle wheels from standstill with two different gear ratios. This feature can help reduce the traction motor torque and power sizing significantly. The paper presents detailed theoretical analyses of the proposed eCVT. Comprehensive simulation demonstrations for a pickup truck HEV application are given to address that the vehicle fuel consumption can be considerably reduced without compromising acceleration performance.