Patent ID: 6642841
Filing Date: 2003-11-04
Classification: B60K,B60Q,B60W,F02D,F02P,G07C

Abstract:
An engine protecting apparatus for a vehicle having an ignition circuit to start an engine thereof, the apparatus comprising:a battery supplying an electric current to the ignition circuit; a key switch disposed between the battery and the ignition circuit, the key switch having an ignition terminal; a condition switch turning on and off based on engine conditions, the condition switch being connected to the ignition terminal of the key switch; a first timer operatively connected to the ignition terminal of the key switch, the timer having a predetermined period of time and measuring a time period from when the condition switch is turned on; a first timer-operative switch actuated by the timer, the timer-operative switch interrupting an electric current flowing to the ignition circuit when the timer measures the predetermined time period, whereby the engine stops after the predetermined time period from when the condition switch turned on; a second timer directly connected to the ignition circuit, the second timer having a predetermined period of time and measuring a time period immediately after the key switch is turned to the ignition terminal; a second timer-operative switch actuated by the second timer, the second timer-operative switch disconnecting the ignition terminal of the key switch from the first timer until the second timer measures the predetermined time period thereof; and a normally open type relay switch disposed between the ignition terminal of the key switch and the condition switch, the relay connecting the ignition terminal and the first timer when the condition switch turns on.