scholarly journals A Dry Clutch Control Algorithm for AMT Systems in a Parallel Hybrid Electric Bus

2012 ◽  
Vol 5 (2) ◽  
pp. 469-474
Author(s):  
Changwoo Shin ◽  
Moseong Kim ◽  
Chunhua Zheng ◽  
Wonsik Lim ◽  
Sukwon Cha
Keyword(s):  
Control Algorithm ◽  
Hybrid Electric Bus ◽  
Electric Bus ◽  
Parallel Hybrid ◽  
Hybrid Electric ◽  
Dry Clutch ◽  
Clutch Control

Engine torque command handling for a series hybrid electric bus

2016 ◽  
Vol 231 (5) ◽  
pp. 638-652 ◽  
Author(s):  
Minjae Kim
Keyword(s):  
Electric Vehicles ◽  
Fuel Economy ◽  
Hybrid Electric Vehicles ◽  
Energy Management Strategy ◽  
Engine Torque ◽  
Hybrid Electric Bus ◽  
Electric Bus ◽  
Parallel Hybrid ◽  
Generator Unit ◽  
Hybrid Electric

The series hybrid electric vehicle makes it easier to have fully independent controls for the engine–generator unit and for the traction motors; this is not feasible in parallel hybrid electric vehicles or series–parallel hybrid electric vehicles. The existing research does not consider this feature. Therefore, a novel control method called engine torque command handling is developed in this study and is added to the optimal energy management strategy, namely dynamic programming; this makes the most of the inertia of the engine–generator unit. The hidden fuel economy improvement factor, as demonstrated by the the difference between the command and the behaviour, can then be found. As a result, a considerable improvement in the fuel economy with straightforward but powerful concepts, such as modification of the engine operating points and the on–off period, is developed in the series hybrid electric bus. The simulation is evaluated by AMEsim–Simulink co-simulation with the well-known urban bus test profiles: the Manhattan cycle, the Braunschweig cycle and the Orange County cycle. The results show the significant potential for reduction in the energy consumption without changing the components or the structure of the vehicle system. This method can be applied to any type of vehicle that allows independent engine power generation without interruption.

A New Method of Gear-Position Decision for Automatic Manual Transmission of Parallel Hybrid Electric Bus

2012 ◽  
Vol 215-216 ◽  
pp. 322-326
Author(s):  
Hong Kun Zhang ◽  
Wen Jun Li ◽  
Fu Gen Hua
Keyword(s):  
Simulation Software ◽  
Manual Transmission ◽  
Vehicle Simulation ◽  
Hybrid Electric Bus ◽  
Decision Method ◽  
Shift Schedule ◽  
Electric Bus ◽  
Parallel Hybrid ◽  
Simulation Results ◽  
Hybrid Electric

In this paper, the gear-position decision method based on 3-parameter the optimal economical shift schedule for Automatic Manual Transmission (AMT) of Parallel Hybrid Electric Bus (PHEB) is proposed. Vehicle simulation model was built by using ADVISOR simulation software. The simulation results show that 3-parameter shift schedule has improved in economical performance of PHEB compared with 2-parameter shift schedule.

Powertrain Simulation Research of Coaxial Series-Parallel Hybrid Electric Bus

2014 ◽  
Vol 945-949 ◽  
pp. 1333-1338
Author(s):  
Dong Jie Pei ◽  
Dong Chen Qin ◽  
Shou Chen Pan
Keyword(s):  
Hybrid Electric Vehicle ◽  
Dynamic Performance ◽  
Operation Mode ◽  
Secondary Development ◽  
Simulation Research ◽  
Vehicle Performance ◽  
Hybrid Electric Bus ◽  
Electric Bus ◽  
Parallel Hybrid ◽  
Hybrid Electric

In order to know the vehicle performance of coaxial series-parallel hybrid electric bus, on the basis of the analysis of the powertrain’s structure and operation mode, the control strategy is made, the simulation system is introduced by the secondary development of Advisor, the simulation result is analyzed and used. Through the analysis of vehicle dynamic performance, fuel economy, SOC value change of super capacitance, and the torque relations of main components, it is known that coaxial series-parallel hybrid electric bus can satisfy the requirements of the city bus’ working condition, and the operation relations between the power components can be mastered, which provides the technical support for the coaxial series-parallel hybrid electric vehicle development.

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