PUMP AND CONTROLS FOR ELECTRIC MOTOR GEARBOX WITH INTEGRATED BRAKE

A military vehicle includes an electric motor, a gearbox, a hydraulic system, and a control system. The gearbox is driven by the electric motor and drives a tractive element. The gearbox includes a first planetary gearset, a second planetary gearset, a first brake, and a second brake. Processing cir...

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Bibliographische Detailangaben
Hauptverfasser:	Kopec, Nicholas, Kotloski, Andrew, Hammond, Christopher, Hechtman, Steven
Format:	Patent
Sprache:	eng
Schlagworte:	ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL BLASTING BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR ENGINEERING ELEMENTS AND UNITS FLUID-PRESSURE ACTUATORS FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS GEARING GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING HYDRAULICS OR PNEUMATICS IN GENERAL LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS LIGHTING MECHANICAL ENGINEERING MOTOR VEHICLES PERFORMING OPERATIONS PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OFVEHICLES SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL THERMAL INSULATION IN GENERAL TRAILERS TRANSPORTING VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES VEHICLES IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	A military vehicle includes an electric motor, a gearbox, a hydraulic system, and a control system. The gearbox is driven by the electric motor and drives a tractive element. The gearbox includes a first planetary gearset, a second planetary gearset, a first brake, and a second brake. Processing circuitry is configured to obtain one or more control inputs including a brake request or a mode selection. The processing circuitry operates the hydraulic system of the military vehicle to transition the gearbox between a park mode, a neutral mode, a first driving mode, and a second driving mode according to the mode selection. The processing circuitry operates the hydraulic system to provide variable pressurization to a chamber corresponding to one of the first brake or the second brake in order to perform the brake request while operating according to the first driving mode or the second driving mode.