METHOD FOR DETERMINING EFFECTIVE POWER OF INTERNAL COMBUSTION ENGINE Russian patent published in 2023 - IPC G01M15/04 G01L3/14 

FIELD: internal combustion engines (ICE).

SUBSTANCE: brake mechanism is mounted in the vehicle structure, consisting of a shaft with discs, electromagnetic coils and a housing. The shaft with brake discs is connected to the ICE crankshaft. Electric current from the power supply with the regulator is supplied to the coils, creating magnetic resistance to the rotation of the disk. The electric current is regulated by the electronic control unit (ECU). The changing current in the brake mechanism changes the load on the internal combustion engine, resisting the rotation of the ICE crankshaft, while creating forces on the body. The resulting forces on the body of the brake mechanism are transmitted to the force transducers, which are installed in two supports on the frame or body of the vehicle. The crankshaft speed sensor installed in the flywheel housing, force converters, electromagnetic coils and electromagnetic injectors are connected to the ECU connected to the on-board diagnostic system. The method for determining the ICE effective power is that, when checking under the operating conditions of the car, the ICE is started, heated to a normal thermal state. The vehicle is installed motionless on a flat area. The transmission is disconnected from the crankshaft. The operator starts the on-board diagnostics process, in which: The ECU turns off the cylinders, except for the specified one, opens the full throttle valve at full fuel supply; stabilizes the rotational speed of the crankshaft at the maximum value by the brake mechanism, giving a signal to the power source with the current regulator; reduces the rotational speed of the crankshaft in accordance with the interval for measuring the values of the forces to the minimum, stabilizing its values by changing the current strength in the power source; at each moment of measurement, it fixes the rotational speed of the crankshaft and the forces at two points of support on the frame or body from each cylinder; calculates the torque, the power of each cylinder, the total torque and the total power of the ICE, respectively, at each moment of the force measurement.

EFFECT: enhancement of ICE diagnostics.

1 cl, 4 dwg