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System facilitate cold starting of the diesel engine
general information In order to achieve the desired temperature in the cylinders ignition compressible cold engine air-fuel mixture system is used to facilitate cold start. In the combustion chamber of each cylinder is screwed a special candle, consisting of a body molded into a heating element formed by the two spirals: heating and control. After the voltage in the heating coil heats the rod for a few seconds to a temperature of 850 ?� C, the current flowing through the spark plug reaches 30 A. As the degree increases, and a resistance heating coil, thereby reducing the current to a value of 15 - 25 A . By disabling the control of incandescent lamps on the instrument panel can be used to start the engine. The time spent on pre-heating cylinders, is not more than 12 seconds, and governed by a special relay and the engine control module (ECM), to obtain information about the current temperature of the engine coolant through the sensor ECT. Based on the analysis of the data ECM controls the duration of the system operating current lamps and heating. The principle of operation of the system of preheat ECM), - ???????�???�?�???�???????�?�?? ?�?�???????????????�?? ?????�?????�?�???�?�???� ?? ?�?�?�?�???�?�. Preheat phase duration is determined by the coolant temperature (ECT sensor ?� ECM), - the corresponding relationship is shown in the table. | Coolant Temperature, ?� C | 130 | 40 | 20 | 0 | -25 | | Activation time relay with | 1 | 7 | 8 | 10 | 12 | | The activation time of a control lamp of preheat with | 1 | 2 | 3 | 4 | 7 |
Forced off the preliminary phase incandescent happens when you start the engine after turning the key to position START. In phase termonakala uses the residual heat of the heating elements of candles after the return of the key provisions of the START OFF position when an attempt to start the engine until the completion of preheat phase, the relay is activated when the candle. In phase postnakala system moves after the success of the launch. The dependence of the functioning of the glow plug in this phase of the coolant temperature shown in the table. | Coolant Temperature, ?� C | 70 | 60 | 50 | thirty | -40 | | Activation time relay, min | 0 | 15 | 4.9 | 8.1 | 8.1 |
Disabling postnakala occurs when a Misfire mixture, and upon reaching the coolant temperature value of 70 ?� C. In addition, the management of the operation phase postnakala produced by the engine speed and the degree of squeezing gas pedal.  | Options postnakala activation phase, depending on engine speed. |
 | Options postnakala activation phase, depending on the degree of squeezing gas pedal. |
 | The drop of the coolant temperature is lower than 60 ?� C leads to reactivation postnakala. |
Cutout glow plug relay occurs when exceeding the battery voltage values in 16, when the motor does not rotate. | When lowering the voltage drops below 14 V for more than two seconds, the relay is reactivated. In addition, the shutdown of candles made in case of failure in fact relay and sensor ECT, CMP and accelerator pedal position. |
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