Abstract: An automotive electrical system for a motor vehicle comprising an internal combustion engine, the automotive electrical system comprising a main electrical power source, a secondary electrical power source, safety critical electrical loads and non-safety critical electrical loads, and an electrical switching device arranged between the main and secondary electrical power sources and at least the safety critical electrical loads and configured to selectively connect at least the safety critical electrical loads to at least one of the main and secondary electrical power sources. The electrical switching device is configured to connect at least the safety critical electrical loads to the auxiliary electrical power source during the cranking of the internal combustion engine and/or when the motor vehicle is coasting with the internal combustion engine off and the main electrical power source is faulty.

Abstract: An automotive electronic control system configured to control the powertrain to stop the internal combustion engine and disengage the drive line, which results in the motor vehicle entering a freewheel running condition with the internal combustion engine off. The control system is further configured to control the drive line during an internal combustion engine run-down after the motor vehicle enters the freewheel running condition, to cause a gear to engage for inertial cranking of the internal combustion engine before the internal combustion engine leaves a self-sustaining operating condition.

Abstract: An automotive electronic control system for a motor vehicle is provided. The automotive electronic control system is designed to cause the motor vehicle to enter a freewheel running condition with internal combustion engine off if the automotive electronic control system determines, based on received quantities indicative of operative conditions of the motor vehicle, occurrence of a driver-performable action indicative of the will of the driver to enter a freewheel running condition with internal combustion engine off and occurrence at or within a given time from the occurrence of the driver-performable action and the maintaining for a given time of specific predetermined entry conditions. The automotive electronic control system is further designed to cause the motor vehicle to leave a freewheel running condition with internal combustion engine off if the automotive electronic control system determines, based on the received quantities, occurrence of at least one of specific predetermined exit conditions.

Abstract: An automotive electronic control system for a motor vehicle powertrain comprising an internal combustion engine and a servo-actuated driveline. The electronic control system is configured to control the powertrain to cause stopping of the engine and disengagement of the driveline, whereby resulting in the motor vehicle entering a freewheel running condition with engine off, and cranking of the engine and engagement of the driveline, whereby resulting in the motor vehicle leaving the freewheel running condition with engine off. The electronic control system is further configured to control the driveline during an engine run-down consequent upon the motor vehicle entering the freewheel running condition with the the engine off, to cause engagement of a gear appropriate for inertial cranking of the engine before the latter leaves a self-sustaining operating condition, while a clutch of the driveline is kept engaged.

Abstract: An automotive electrical system for a motor vehicle comprising an internal combustion engine, the automotive electrical system comprising a main electrical power source, a secondary electrical power source, safety critical electrical loads and non-safety critical electrical loads, and an electrical switching device arranged between the main and secondary electrical power sources and at least the safety critical electrical loads and configured to selectively connect at least the safety critical electrical loads to at least one of the main and secondary electrical power sources. The electrical switching device is configured to connect at least the safety critical electrical loads to the auxiliary electrical power source during the cranking of the internal combustion engine and/or when the motor vehicle is coasting with the internal combustion engine off and the main electrical power source is faulty.