| 摘要 |
In cold weather the inconvenience of plugging in a motor vehicle to ensure starting and warmer starts is generally considered well worth the effort. This inconvenience includes monitoring the weather to anticipate cold nights, and plugging the motor vehicle into power on cold nights to ensure smooth starts on following mornings. This inconvenience also includes passing up potential parking locations where an adjacent power source is unavailable. A convenient method of preheating a vehicle engine having a first battery, charged by an alternator comprising the steps of: providing for a second battery electrically charged by the alternator, said second battery electrically isolated from the first battery by a battery isolator, so that the first battery is not depleted by a load drawn from the second battery; and, providing an engine heater which draws power from the second battery. In a preferred aspect of this method the further steps of providing a thermostatic switch and a timer are included.
|
