FINAL PROJECTControl System design for a configurable Hybrid
VehicleBYBrijendra SinghRakesh MohantySouman HaldarINSTRUCTURE: Dr.
BO CHENTA : Ming ChenMEEM/EE 5750 Distributed Embedded Control
System
The main Objective of this project are To design and validate
sub-models for the control module and a stepper motor driving model
in the actuator moduleTo design and develop the entire control
system for configurable hybrid vehicleOBJECTIVE
IntroductionThe control system of the configurable hybrid
vehicle consists of Sensor Module, Control Module and Actuator
Module HEV stands forHybrid Electric Vehicle. A hybrid vehicle has
more than one power source. A small internal combustion engine
along with a motor to provide energy to the vehicle .
Model DevelopmentThe final model consist of 7 sub-models
System Input Output Parameter
Model DevelopmentDriving mode model
Blend Factor
Engine state logic
Engine Torque/Throttle
Engine Start/Stop Model
E-Motor Start/Stop model
Stepper Motor(Actuator Module
CalibrationFinal System Calibration on MotoHawk and
MotoTuneInput Frequency Range : 300 Hz to 3000 Hz
Controller OutputThe output of the controller (entire model ) is
to control of the stepper motor (actuator) as per the defined
logic. The operation of the stepper motor is indicated by
energizing the coils in proper sequence. The direction of the
stepper motor is determined by the difference of Engine Throttle
Request and Throttle position sensorIn order to see the switching
of the lights a time delay 2 secs was introduced between switching
of coils.
Time Delay between Energizing CoilsTime Delay Introduced
Stepper Motor OperationVIDEO LINK
Efficient Blend FactorStratergy Developed a model to improve the
torque blending by introducing IC Engine efficiency mapHigher
torque request given to IC Engine only when it operates around
maximum efficiency region.
Matlab Code3-D Plot for Engine Efficiency Map
ImprovementPrevention Of Rapid Switching(Removing
Hytreysis)Battery ProtectionImprovement in torque blending
Engine State
Engine Kill
Stepper Motor
ConclusionWe can Further improve the system by using a feedback
system.We improve
