CONSTRUCTION EQUIPMENT WITH ADVANCED POWER MANAGEMENT FUNCTIONS

• Main Author: OLSSON, Tommy
• Format: Patent
• Language: English
• Published: 30.03.2024
• Subjects: CONTROL OR REGULATING SYSTEMS IN GENERAL; CONTROLLING; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRIC EQUIPMENT OR PROPULSION OF ELECTRICALLY-PROPELLEDVEHICLES; ELECTRICITY; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES, IN GENERAL; EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; GENERATION; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS ORELEMENTS; PERFORMING OPERATIONS; PHYSICS; REGULATING; TRANSPORTING; VEHICLES IN GENERAL

A hybrid electrical power system (910, 1000) for powering at least one actuator (950) on construction equipment (100), the system (910, 1000) comprising an electrical energy storage, ESS, (920), an electrical mains cable connection (160, 930), and a control unit (110, 180, 210, 600, 940),where the control unit (110, 180, 210, 600, 940) is arranged to obtain data indicative of a current (Imain) drawn over the electrical mains cable connection (160, 930) as function of time,where the control unit (110, 180, 210, 600, 940) is arranged to process the obtained data using at least a first and a second averaging function, where the first averaging function is associated with a shorter averaging time window (Tw1) compared to the second averaging function (Tw2), and where the outputs of the at least two averaging functions are associated with respective function acceptance criteria,where the control unit (110, 180, 210, 600, 940) is arranged to control a transfer of electrical energy to and/or from the ESS (920) based on both filter outputs in relation to the respective filter acceptance criteria.