Abstract: A personal impact protection system comprising a plurality of discrete wearable inflatable items configured to be worn on or around respective parts of a user's body. The system further comprises at least one inflator configured to produce a flow of inflating gas to inflate said inflatable items when worn by the user, and a control system operably connected to the or each said inflator and con-figured to actuate the or each said inflator in response to an actuation signal and in accordance with an inflation characteristic selected from a group of possible inflation characteristics comprising: i) inflation of all of said inflatable items; ii) inflation of some but not all of said inflatable items; and iii) inflation of a single one of said inflatable items. The control system is configured to select said inflation characteristic in dependence on at least one of: said actuation signal; and a determination of which of said inflatable items are worn by the user.

Abstract: The arrangement for disconnecting at least one of a plurality of battery modules in an automotive battery comprises a device arranged to detect that at least one battery module is to be disconnected, and a bypass switch arranged at each battery module, wherein the bypass switch arranged at the detected at least one battery module is controllable to bypass the at least one detected battery module via a bypass path. The arrangement further comprises a disconnect switch arranged at each battery module, wherein the disconnect switch arranged at the at least one bypassed battery module is controllable to disconnect the at least one detected battery module from remaining battery modules, either simultaneously as, or after, the bypassing of the detected battery module.

Abstract: The arrangement for disconnecting at least one of a plurality of battery modules in an automotive battery comprises a device arranged to detect that at least one battery module is to be disconnected, and a bypass switch arranged at each battery module, wherein the bypass switch arranged at the detected at least one battery module is controllable to bypass the at least one detected battery module via a bypass path. The arrangement further comprises a disconnect switch arranged at each battery module, wherein the disconnect switch arranged at the at least one bypassed battery module is controllable to disconnect the at least one detected battery module from remaining battery modules, either simultaneously as, or after, the bypassing of the detected battery module.