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Electric-hydraulic car

Patent ·
OSTI ID:6329022
;
A propulsion system is described for a vehicle having a chassis and at least one drive wheel, the propulsion system including in combination: a constant speed power source comprising an alternating current electric motor operated at a constant speed corresponding to its optimum performance; a source of energy comprising a storage battery and an inverter connected to the electric motor for operating the electric motor of the constant speed power source; a hydraulic fluid system including a main hydraulic pump coupled with the electric motor of the constant speed power source and driven thereby; at least one hydraulic drive motor coupled with the hydraulic pump for receiving fluid flow therefrom; and means for varying the fluid flow through the main hydraulic pump to vary the speed of operation of the hydraulic drive motor.
Assignee:
IMS; EDB-93-113700
Patent Number(s):
US 5230402; A
Application Number:
PPN: US 7-858414
OSTI ID:
6329022
Country of Publication:
United States
Language:
English

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Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330300* -- Advanced Propulsion Systems-- Electric-Powered Systems
CONTROL EQUIPMENT
ELECTRIC BATTERIES
ELECTRIC MOTORS
ELECTRIC-POWERED VEHICLES
ELECTROCHEMICAL CELLS
ENGINES
EQUIPMENT
FLUID MECHANICS
HYDRAULIC CONTROL DEVICES
HYDRAULIC EQUIPMENT
HYDRAULICS
MECHANICS
MOTORS
PROPULSION SYSTEMS
VEHICLES