A battery (3) is connected in series with the lower voltage system (1) and also in series with a supercapacitor (5) to supply the higher voltage system (2). A DC/DC convertor (4) has higher and lower voltage terminals (4c,4a) connected to the respective sy...

The three phase alternator stator coil is star wound having a neutral point (N) connected to a second sub-network operating at a lower voltage value (Ub) than a first voltage (Us) network. An electronic controller and voltage regulator (22) controls and re...

An emergency call system with a battery switching function and provided with an auxiliary battery (6), wherein au arithmetic control unit (2); always monitors a vehicle-mounted battery voltage (+B), an ACC voltage applied during an engine operation and the...

The method of voltage regulation is carried out with the assistance of a control unit (SE) which includes a timer. The already set charging capacity for the battery (BS) is matchable according to the need dependent fluctuating power intakes of the electric...