Vehicle hybrid power system and method for creating simulated equivalent fuel consumption multidimensional data applicable thereto
First Claim
1. A method for controlling the components of a hybrid vehicle including a motor, an engine, a generator, and a clutch between a motor and engine by creating simulated equivalent fuel consumption multidimensional data, which comprises the following steps:
- (1) inputting the minimum and maximum physically allowed values for the system control parameters, system state parameters, and system negative load parameters, and then performing a discretization process on these parameters within the scope of their allowed values;
(2) entering the system parameters derived from the discretization process into the following defined equivalent fuel consumption formulas for creating the simulated equivalent fuel consumption multidimensional data;
(3) controlling at least one of said components of said hybrid electric vehicle based on the simulated equivalent fuel consumption formulas; and
(4) the equivalent fuel consumption formula being;
{dot over (m)}EF={dot over (m)}e−
PFISG×
{dot over (m)}ISG+PFm×
{dot over (m)}m
{dot over (m)}e=BSFCe(Te,Ne)×
(Te×
Ne)
{dot over (m)}m=mBSFCm×
(Tm×
Nm)
{dot over (m)}ISG=mBSFCISG×
(TISG×
Ne)wherein,{dot over (m)}EF is the system simulated equivalent fuel consumption required by the system for providing the system negative load torque,{dot over (m)}e is the engine fuel consumption required by the engine for providing the engine output torque,{dot over (m)}m is the motor simulated equivalent fuel consumption required by the motor for providing the motor output torque,{dot over (m)}ISG is the generator simulated equivalent fuel consumption required for inputting torque to the generator,Te is the engine output torque,Ne is the engine output rotation speed,BSFCe(Te,Ne) is the engine fuel consumption efficiency determined by the engine output torque and rotation speed,Tm is the motor output torque,Nm is the motor output rotation speed,mBSFCm is the equivalent fuel consumption efficiency of the motor,TISG is the generator input toque,NISG is the generator input rotation speed,mBSFCISG is the equivalent fuel consumption efficiency of the generator,PFISG is the penalty factor for the generator to battery charge; and
PFm is the penalty factor for the battery consumption on the motor.
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Abstract
A vehicle hybrid power system is provided according to the present invention. The hybrid power system is characterized by applying the concept of minimum equivalent fuel consumption, and then simulating equivalent fuel consumptions based on respective energy consumption or increase of motor and generator of a motor vehicle, and also defining simulated equivalent fuel consumption formula and making a list of system state parameters, system control parameters, and system negative load parameters, thereby obtaining simulated equivalent fuel consumption multidimensional data by entering the system parameters derived from a discretization/transformation process in the defined simulated equivalent fuel consumption formula; wherein, the simulated equivalent fuel consumption multidimensional data are revised to comprise subsystems, such as system engine, motor, generator, and others to determine a system control strategy of holistic optimization, thereby achieving the objective of saving energy. The present invention further provides a method for creating simulated equivalent fuel consumption multidimensional data, which is applicable to the hybrid power system of the present invention.
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Citations
10 Claims
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1. A method for controlling the components of a hybrid vehicle including a motor, an engine, a generator, and a clutch between a motor and engine by creating simulated equivalent fuel consumption multidimensional data, which comprises the following steps:
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(1) inputting the minimum and maximum physically allowed values for the system control parameters, system state parameters, and system negative load parameters, and then performing a discretization process on these parameters within the scope of their allowed values; (2) entering the system parameters derived from the discretization process into the following defined equivalent fuel consumption formulas for creating the simulated equivalent fuel consumption multidimensional data; (3) controlling at least one of said components of said hybrid electric vehicle based on the simulated equivalent fuel consumption formulas; and (4) the equivalent fuel consumption formula being;
{dot over (m)}EF={dot over (m)}e−
PFISG×
{dot over (m)}ISG+PFm×
{dot over (m)}m
{dot over (m)}e=BSFCe(Te,Ne)×
(Te×
Ne)
{dot over (m)}m=mBSFCm×
(Tm×
Nm)
{dot over (m)}ISG=mBSFCISG×
(TISG×
Ne)wherein, {dot over (m)}EF is the system simulated equivalent fuel consumption required by the system for providing the system negative load torque, {dot over (m)}e is the engine fuel consumption required by the engine for providing the engine output torque, {dot over (m)}m is the motor simulated equivalent fuel consumption required by the motor for providing the motor output torque, {dot over (m)}ISG is the generator simulated equivalent fuel consumption required for inputting torque to the generator, Te is the engine output torque, Ne is the engine output rotation speed, BSFCe(Te,Ne) is the engine fuel consumption efficiency determined by the engine output torque and rotation speed, Tm is the motor output torque, Nm is the motor output rotation speed, mBSFCm is the equivalent fuel consumption efficiency of the motor, TISG is the generator input toque, NISG is the generator input rotation speed, mBSFCISG is the equivalent fuel consumption efficiency of the generator, PFISG is the penalty factor for the generator to battery charge; and PFm is the penalty factor for the battery consumption on the motor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification