Cold start

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F - Mech Eng,Light,Heat,Weapons

02

N

342/13.6

F02N 99/00 (2010.01) F02D 25/04 (2006.01) F02N 11/08 (2006.01) F02B 1/04 (2006.01) F02B 3/06 (2006.01)

Patent

CA 1309152

ABSTRACT Apparatus for automatically controlling the ready-to-drive condition while maintaining ready-to-start temperature of a single or multiple gas, gas-diesel or diesel engine in automobile uses an electronic circuit linked to various sensors including a temperature sensor, a vibration sensor, and a motion sensor. Signals generated by the temperature sensor are used to turn the engine on and off based on predetermined maximum and minimum temperature. The temperature sensor output is also used to automatically reset the engine. For multiple engines, this sensor can be used to actuate a secondary engine if the primary engine reaches a predetermined maximum temperature and switch back to the primary engine when the engine temperature drops to a predetermined low temperature. Signals generated by the vibration sensor are used to monitor engine activity. For multiple engines, the vibration sensor output determines when control is switched from the primary engine to the secondary engine or vice versa, and also determines the engine cranking time for both multiple and single engines. Signals generated by the motion sensor are used to disable engine activity when accidental motion is detected of the automobile. Control means are provided for regulating several attempts at automatically starting the engine of an automobile with the engine parameters being changed each time. The starting mechanism is reset when the engine starts, and is disabled temporarily if a predetermined number of failed attempts to start have been made. Provision is also made for restarting the engine if stops running and if predefined motor conditions exist.

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