Simulation and Analysis of the Hybrid Bus Performance Based on AVL-Cruise

2013 ◽  
Vol 712-715 ◽  
pp. 1221-1225 ◽  
Author(s):  
Kai Yu ◽  
Chang Qing Song ◽  
Lu Yan Fan ◽  
Hao Qin
Keyword(s):  
Fuel Consumption ◽  
Hybrid System ◽  
Fuel Economy ◽  
Control Strategy ◽  
Dynamic Performance ◽  
Hybrid Vehicle ◽  
Simulation Data ◽  
Hybrid Bus ◽  
Avl Cruise ◽  
Fuel Consumption And Emissions

Recently, due to the reduction of oil and the deterioration of environment, people raised higher request for fuel economy and emissions, hybrid vehicle developed rapidly in most countries because of its low fuel consumption and emissions. In order to develop appropriate hybrid system, the text builds the model of prototype bus in the AVL-Cruise platform first, and then, establishes the model of PHB and accomplishes the control strategy of vehicle in the MATLAB/SIMULINK environment. The simulation data indicates: PHB can improve the fuel economy and emission performance effectively with guaranteeing a good dynamic performance of bus.

Design and Simulation of Power System for Hybrid Sweeper Truck

2013 ◽  
Vol 389 ◽  
pp. 435-440
Author(s):  
Bing Li Zhang ◽  
Lun Zhen Wang ◽  
Fu Bin Xiao ◽  
Xin Ying Ou
Keyword(s):  
Power System ◽  
Simulation Model ◽  
Fuel Consumption ◽  
Hybrid System ◽  
Fuel Economy ◽  
Control Strategy ◽  
Hybrid Power System ◽  
Hybrid Power ◽  
Simulation Results ◽  
And Control

A hybrid system scheme was designed for the sweeper truck, to solve the problems of high fuel consumption and poor emission performance of traditional sweeper. The control strategy was determined for the hybrid power system. The simulation model of hybrid sweeper truck was built with Matlab/Simulink, and off-line simulation was completed to verify the power system scheme and control strategy, the simulation results indicate that the hybrid sweep truck can realize functions of sweeper and improve the fuel economy.

scholarly journals Power-Following Control Strategy of a Wheel-Drive Hydraulic Hybrid Vehicle

2020 ◽  
Vol 66 (3) ◽  
pp. 193-202
Author(s):  
Tao Zhang ◽  
Qiang Wang ◽  
Xiao-Hui He ◽  
Si-Sheng Li ◽  
Xin-Min Shen
Keyword(s):  
Fuel Consumption ◽  
Energy Management ◽  
Fuel Economy ◽  
Control Strategy ◽  
Management Strategy ◽  
Dynamic Performance ◽  
Energy Management Strategy ◽  
Hydraulic Hybrid ◽  
Wheel Drive ◽  
Critical Technology

Energy management strategy is a critical technology for improving the fuel economy of wheel-drive hydraulic hybrid vehicles. For driving, a power-following control strategy is proposed in this study by adding several working points of the engine in the optimal fuel economy power curve. For braking, the “I” curve distribution strategy based on critical braking strength zmin was adopted. A test bench was constructed according to the quarter of the prototype vehicle. Taking the typical working conditions of Federal Urban Driving Schedule (FUDS) and the selfset extra-urban driving schedule (EUDC-1) cycle condition into consideration, the energy management strategy was studied. The torque and speed of the simulated engine and pressure of the accumulator were obtained. The test fuel consumption in this research was compared with the original fuel consumption of the prototype vehicle. It was found that the proposed energy management strategy could effectively improve the fuel economy by more than 24 % under the requirement of satisfying the dynamic performance of the whole vehicle.

Traffic Condition-Based Gain Scheduling of Electric Assist Control Strategy for Parallel Hybrid Electric Vehicles

2007 ◽  
Author(s):  
Amir Poursamad
Keyword(s):  
Fuel Consumption ◽  
Electric Vehicles ◽  
Control Strategy ◽  
Hybrid Electric Vehicles ◽  
Gain Scheduling ◽  
Driving Cycle ◽  
Traffic Condition ◽  
Traffic Conditions ◽  
Parallel Hybrid ◽  
Fuel Consumption And Emissions

This paper presents gain scheduling of control strategy for parallel hybrid electric vehicles based on the traffic condition. Electric assist control strategy (EACS) is employed with different parameters for different traffic conditions. The parameters of the EACS are optimized and scheduled for different traffic conditions of TEH-CAR driving cycle. TEH-CAR is a driving cycle which is developed based on the experimental data collected from the real traffic condition in the city of Tehran. The objective of the optimization is to minimize the fuel consumption and emissions over the driving cycle, while enhancing or maintaining the driving performance characteristics of the vehicle. Genetic algorithm (GA) is used to solve the optimization problem and the constraints are handled by using penalty functions. The results from the computer simulation show the effectiveness of the approach and reduction in fuel consumption and emissions, while ensuring that the vehicle performance is not sacrificed.

Simulink on Hydraulic System of Engineering Vehicle

2012 ◽  
Vol 201-202 ◽  
pp. 499-502
Author(s):  
Zhong Yun Qiao ◽  
Fu Zhou Zhao
Keyword(s):  
Hybrid System ◽  
Fuel Economy ◽  
Control Strategy ◽  
Hydraulic System ◽  
Large Scale ◽  
Energy Savings ◽  
Operating Mode ◽  
Mode Switching ◽  
Energy Control ◽  
Simulation Results

Traditional energy saving methods for engineering vehicle cannot raise the effect on a large scale if there are no major technology breakthrough. Hybrid system has the potential of improving fuel economy by operating the engine in an optimum efficiency range and it has been successfully applied in engineering vehicles. So equipping engineering vehicle with the hybrid system provides a new way to achieve energy savings. Simulation results of vehicles based on backward modelling shows that the energy control strategy can achieve a variety of reasonable operating mode switching and meet the vehicle at power.

Research on Energy Saving Scheme of CVT in Automobile

2010 ◽  
Vol 37-38 ◽  
pp. 1017-1021
Author(s):  
Ping Yuan Xi ◽  
Limin Chen
Keyword(s):  
Energy Saving ◽  
Fuel Consumption ◽  
Fuel Economy ◽  
Control Strategy ◽  
Automatic Transmission ◽  
Mechanical Efficiency ◽  
Efficiency Curve ◽  
Variable Transmission ◽  
Optimal Efficiency ◽  
Continuous Range

The continuously variable transmission (CVT) offers the potential of allowing the engine operate near the optimal efficiency curve throughout a continuous range of velocity ratios. So the fuel economy of the automobile will be improved distinctly with the CVT having high mechanical efficiency. The double parameter shifting rule is used more frequently in the automatic transmission. The accurate model of CVT was developed and integrated with the control strategy in this paper. The CVT enables the engine to operate under the most economical conditions, which makes the fuel consumption be reduced and the efficiency be improved.

Development of a Euro VI Diesel Engine System Optimised to Deliver Fuel Economy and Emissions Improvements on a Series Hybrid City Bus Application for One of the World’s Busiest Bus Networks

2014 ◽  
Author(s):  
Jeevan Ghadge ◽  
Alok Krishnan ◽  
Samarth Gupta ◽  
Dhilip Balasundaram ◽  
Tim Best
Keyword(s):  
Diesel Engine ◽  
Hybrid System ◽  
Fuel Economy ◽  
Real World ◽  
Engine Speed ◽  
System Level ◽  
Particulate Filter ◽  
Tail Pipe ◽  
Hybrid Bus ◽  
Engine System

Ongoing efforts to reduce CO2 and other pollutant tail pipe emissions have led to escalated demand for diesel-electric hybrid bus powertrains in Europe, similar to the trend in passenger car markets. This is fuelled by public expectations and initiatives by various European governments to reward bus fleet operators for reduced in-city emissions and noise thus improving air quality and wellbeing of the general population. This paper describes the engineering efforts that developed a Euro VI certified diesel engine system, catering for series hybrids operating under ‘charge-depleting’ as well as ‘load following’ battery management strategies. The development team delivered improved fuel economy whilst dealing with requirements around legislation, unique customer duty cycles and engine mechanical robustness. Focus was placed on capturing requirements from a diverse range of sources and harmonising them to develop a technical solution fit for purpose in day to day operation that differs from validation cycles and standard drivetrain operation. In order to deliver a field-ready solution, application specific tuning and validation processes had to be defined and developed. This was achieved through close coordination with the European bus OEMs and their chosen hybrid system suppliers. Six-sigma tools were used to highlight key expectations and drive technical solutions. At a system level the focus was on OBD reliability, exhaust after-treatment management, controls functionality, hardware durability and tail pipe emissions. Performance targets including the number of start-stops per hour, idle management and engine speed-torque ramp rates were defined. Drive cycle simulations helped define optimal engine and hybrid system operating strategies followed by physical testing to further optimise these running points. Vehicle-level validation was completed through field testing, specific European bus test cycles, as well as under exceptional scenarios encountered in real world use. This exercise was designed to find and solve interface and OBD issues. Integration challenges in the areas of engine speed-torque control, diesel particulate filter management and HVAC control were addressed. The outcome is the release of a bespoke Euro VI diesel engine package, which enabled the hybrid bus system to exceed customer expectations. This integrated system operates on a set of optimised parameters delivering efficient sub system behaviour including aftertreatment management, engine protection and operating state control. It handles the full range of real-world vehicle operation with improved fuel economy, frequent start/stop operation and enhanced driveability.

The Simulation Study of Hybrid Compression Garbage Trucks

2012 ◽  
Vol 608-609 ◽  
pp. 1220-1224
Author(s):  
Qiang Sun ◽  
Guo Xiang Li ◽  
Shu Zhan Bai ◽  
Cheng Cheng Ma
Keyword(s):  
Fuel Consumption ◽  
Test Data ◽  
Simulation Study ◽  
Fuel Economy ◽  
Simulation Data ◽  
Matlab Simulink ◽  
Hybrid Technology ◽  
Working Cycle

This paper focuses on the fuel economy of hybrid compressing garbage trucks (CGT). Measurements of traditional CGT’s main working lines were taken in order to get the standard working cycle of CGT. Based on the analysis of traditional and hybrid CGT’s structure, a traditional CGT model and a hybrid CGT model were built in Cruise and Matlab\Simulink environment. Accuracy of the traditional CGT model was verified by comparing simulation data and test data. The comparison shows that the error in fuel consumption is 7.7%. Then characteristics of hybrid CGT were studied by comparing simulation data of the two models. It is found that, under the test condition, fuel economy gets 25.7% improved and Hybrid technology is suitable for compressing CGT.

Sign in / Sign up

Export Citation Format

Share Document