(EP935540-A1)      The control device is arranged in an in-board network with at least two batteries charged by a generator, which serve for the supply of a first and a second consumer, and are selectively connected with each other through the control device. The control device (10a, 10b) includes a voltage supply part (11) with at least one FET (23), and devices for a voltage regulation (32, 33), connected with the batteries (16, 18).    The FET is switched on by a signal, for activating the control device. A control- and regulation unit (12) which includes a microcomputer, is provided as an element of the control device, and triggers the control- and regulation processes.    USE -   For engine management parameters, such as revs, idling revs and load.    ADVANTAGE -   Provides permanent connection to batteries, and assures fast and simple activation of control device after ignition.    (JP2001503703-W)      The control device is arranged in an in-board network with at least two batteries charged by a generator, which serve for the supply of a first and a second consumer, and are selectively connected with each other through the control device. The control device (10a, 10b) includes a voltage supply part (11) with at least one FET (23), and devices for a voltage regulation (32, 33), connected with the batteries (16, 18).    The FET is switched on by a signal, for activating the control device. A control- and regulation unit (12) which includes a microcomputer, is provided as an element of the control device, and triggers the control- and regulation processes.    USE -   For engine management parameters, such as revs, idling revs and load.    ADVANTAGE -   Provides permanent connection to batteries, and assures fast and simple activation of control device after ignition.    (US6232674-B1)      The control device is arranged in an in-board network with at least two batteries charged by a generator, which serve for the supply of a first and a second consumer, and are selectively connected with each other through the control device. The control device (10a, 10b) includes a voltage supply part (11) with at least one FET (23), and devices for a voltage regulation (32, 33), connected with the batteries (16, 18).    The FET is switched on by a signal, for activating the control device. A control- and regulation unit (12) which includes a microcomputer, is provided as an element of the control device, and triggers the control- and regulation processes.    USE -   For engine management parameters, such as revs, idling revs and load.    ADVANTAGE -   Provides permanent connection to batteries, and assures fast and simple activation of control device after ignition.