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US 2014/0277979 A1Published application
System and method for maintaining operational states of vehicle remote actuators during failure conditions
AssigneeAutoliv ASP, Inc.
InventorColm Boran
Life of this patent
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Abstract
A system and method for maintaining operational states of vehicle remote actuators during failure conditions is described. The system controller determines if the actuator controller is operating properly by monitoring an enable line and initiates a safe mode of operation if the actuator is not operating properly.
Claims12
A system for maintaining the operation state of an electronic control unit, the system comprising:
- a first electronic control unit;
- a second electronic control unit electrically connected to the first electronic control unit via a conductive member;
- wherein the first electronic control unit powers the second electronic control unit by providing current to the second electronic control unit via the conductive member;
- wherein the second electronic control unit provides a signal to the first electronic control unit via the conductive member;
- wherein the first electronic control unit is configured to monitor the conductive member for the signal from the second electronic control unit;
- and
- wherein the first electronic control unit is configured to not provide current to the second electronic control unit if the first electronic control unit does not receive the signal from the second electronic control unit.
4 more elements
A method for maintaining the operation state of an electronic control unit, the method comprising the steps of:
- providing current from a first electronic control unit to a second electronic control unit via a conductive member for powering the second electronic control unit;
- receiving by the first electronic control unit a signal from the second electronic control unit via the conductive member;
- removing current by the first electronic control unit to the second electronic control unit when the signal is not received by the first electronic control unit.
Dependencies are inferred from the claim text.