Automatic battery charge and discharge control system
US5418444A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 22, 1993 |
| Grant date | May 23, 1995 |
| Priority date | — |
| Expiry date | Jun 22, 2013 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J7/0024
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An automatic ignition controlled battery charge and discharge system for vehicles such as RV's boats and the like, that have an engine with a charging system connected to a main battery, an ignition switch controlling the engine, and a plurality of auxiliary batteries. When the engine ignition is turned on, the main battery connected to a generator or alternator of the engine is placed in parallel with a plurality of auxiliary batteries for charging, and when the engine ignition is turned off, the main battery is isolated from the plurality of auxiliary batteries, to allow the auxiliary batteries to discharge without affecting the voltage potential of the main battery. In an alternate embodiment the system has an AC-power charger that allows the main battery to be placed in parallel with a plurality of auxiliary batteries and charged by the AC-powered charger, when the ignition is turned off, and a sensing circuit that provides a means for sensing the charge potential of the main and auxiliary batteries, whereby charging of each battery is discontinued upon sensing that each battery maximum charging potential has been reached.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.