Title: Hybrid power system control and operating strategy based on power system state vector calculation

Abstract

Controlling a hybrid power system includes calculating a power system state vector based on energy demand and a stored data array including a matrix defined by a power system hardware configuration. The control further includes producing a power request based on the power system state vector, and varying a flow of energy amongst energy devices using drive linkages in the hybrid power system based on the power request. Related apparatus, control logic and controller structure is disclosed.

Inventors:

Guo, Fang; Steffen, Jay R.; Koci, Chad Palmer; Kruiswyk, Richard W.

Issue Date:

2023-08-15

Research Org.:

Caterpillar Inc., Deerfield, IL (United States)

Sponsoring Org.:

USDOE

OSTI Identifier:

2222141

Patent Number(s):

11728658

Application Number:

17/127,547

Assignee:

Caterpillar Inc. (Peoria, IL)

Patent Classifications (CPCs):

B - PERFORMING OPERATIONS B60 - VEHICLES IN GENERAL B60K - ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES

B - PERFORMING OPERATIONS B60 - VEHICLES IN GENERAL B60W - CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION

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B - PERFORMING OPERATIONS B60 - VEHICLES IN GENERAL B60K - ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES

B60K6/00 - Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines {
B60K6/20 - the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
B60K6/24 - characterised by the combustion engines
B60K6/30 - characterised by chargeable mechanical accumulators, e.g. flywheels
B60K6/387 - Actuated clutches, i.e. clutches engaged or disengaged by electric, hydraulic or mechanical actuating means

B - PERFORMING OPERATIONS B60 - VEHICLES IN GENERAL B60W - CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION

B60W10/02 - including control of driveline clutches
B60W10/06 - including control of combustion engines
B60W10/08 - including control of electric propulsion units, e.g. motors or generators
B60W10/101 - Infinitely variable gearings
B60W10/26 - for electrical energy, e.g. batteries or capacitors
B60W10/30 - including control of auxiliary equipment, e.g. air-conditioning compressors or oil pumps
B60W20/11 - using model predictive control [MPC] strategies, i.e. control methods based on models predicting performance {
B60W20/40 - Controlling the engagement or disengagement of prime movers, e.g. for transition between prime movers {

H - ELECTRICITY H02 - GENERATION H02J - CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER

H02J2203/20 - Simulating, e g planning, reliability check, modelling or computer assisted design [CAD]
H02J2300/10 - The dispersed energy generation being of fossil origin, e.g. diesel generators
H02J2310/46 - for ICE-powered road vehicles
H02J3/30 - using dynamo-electric machines coupled to flywheels
H02J3/32 - using batteries with converting means
H02J3/381 - {Dispersed generators}
H02J3/46 - Controlling of the sharing of output between the generators, converters, or transformers
H02J3/48 - Controlling the sharing of the in-phase component
H02J7/1492 - {by means of controlling devices between the generator output and the battery}

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DOE Contract Number:  

EE0008476

Resource Type:

Patent

Resource Relation:

Patent File Date: 12/18/2020

Country of Publication:

United States

Language:

English