The method of controlling the vehicle engine

 

(57) Abstract:

Use: vehicles equipped with internal combustion engines. The inventive method of controlling the vehicle engine is that when the vehicle is moving, disconnect the crankshaft from the transmission, thus interrupting the flow of the fuel mixture so that the engine could not work at idle and cranking exercise from an external source, for example an electric motor connected to the battery of the vehicle. The invention allows to save fuel when the car is coasting and when stopping at traffic lights. 2 C. p. F.-ly.

The invention relates to vehicles equipped with internal combustion engine.

A known method of controlling the internal combustion engine, comprising interrupting the formation of the fuel mixture and simultaneously interrupting the supply of fuel so that the engine could not operate at idle (see USSR author's certificate N 63594, IPC F 02 13/04 was investigated, 1944).

The disadvantage of this method is that the starting of the engine is accompanied by increased intensity of the symptom is adelayda rubbing parts, because it is not running the oil pump.

The objective of the invention is to reduce wear of friction pairs.

The problem is solved in that a method of controlling an internal combustion engine includes induced the formation of the fuel mixture and simultaneous interruption of fuel supply so that the engine could not work at idle and disconnect the crankshaft of the engine from the transmission, and the rotation of a cranked shaft from an external source.

Interrupt the formation of the fuel mixture can be accomplished by closing the throttle of the carburetor, and the rotation of the crankshaft can be operated from an electric motor connected to the battery of the car.

The control method of the vehicle is carried out as follows. When the vehicle is moving, disconnect the crankshaft of the engine from the gearbox (off clutch), shut off the fuel so that the engine could not work, and the rotation of the crankshaft is provided by an external source, such as from an electric motor connected to the battery of the car.

When y is s must occur simultaneously with pressing the gas pedal.

The above operation method will save fuel, in addition to the movement in the "engine braking", still and motion "coasting" and stops at traffic lights. This is achieved by the fact that under these driving conditions, the vehicle does not stop, but continue to rotate from an external source and retain an oil film between the friction parts. Fuel saving is achieved due to the fact that the efficiency of the motor are five to six times higher than the efficiency of a car engine idling. When the engine is not reduced because the presence of the oil film prevents the wear of working surfaces. Only the power required to rotate the motor vehicle with a uniform velocity, can be determined on the basis of the need for this moment and the requisite speed.

So, for engines of VAZ specified torque M 0,8 1,0 KGM.

The speed at which there is still oil film p 80 100 rpm Based on this, the well-known formula of mechanics:

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As the electric motor can be used a regular starter with the modified mechanism into engagement with the flywheel of its rotor. For example, instead of gear maharashtran fundamentally new variant of the starter, rotor winding which are located on the flywheel, and the winding of the starter on the clutch housing.

As for the battery, it will discharge very moderate currents 8 -10 And that it is safe.

The implementation of the method can be implemented using a simple circuit of relay automation, managed three sensors that monitor the position of the throttle of the carburetor, the condition of the clutch (on, off) and a sensor determining the presence or absence of rotation of the secondary shaft of the gearbox (speedometer cable).

As the first two sensors can be used limit switches, and the third sensor is a tachometer or similar device. If necessary, may provide for the safeguarding of rotation of the crankshaft of the engine from the electric motor on the car, have not started the movement (the number of revolutions of the output shaft of the gearbox is zero).

1. The method of controlling the internal combustion engine, comprising interrupting the formation of the fuel mixture and simultaneous interruption of fuel supply so that the engine could not operate at idle, otlichayut from an external source.

2. The method according to p. 1, characterized in that the interruption of the fuel mixture formation is carried out by closing the throttle of the carburetor.

3. The method according to PP. 1 and 2, characterized in that the rotation of a cranked shaft from an external source, in the form of an electric motor connected to the battery of the vehicle.

 

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3 cl, 3 dwg

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