Fixed motor type engine transient dynamic test dual-purpose dynamometer and dual-purpose method

Abstract

The invention discloses a fixed-motor dual-purpose dynamometer for engine transient and dynamic tests and dynamic tests. The fixed-motor dual-purpose dynamometer comprises a base, a first transmission-shaft bearing support, a second transmission-shaft bearing support, a dynamometer motor and a transmission shaft. The transmission shaft is sleeved with a flywheel shaft, a transmission-shaft and flywheel-shaft connector is connected on the transmission shaft, and an inertial flywheel is connected on the flywheel shaft through a flywheel tensioning sleeve; a flange torque sensor is connected on the base, a flange transmission-shaft side coupling is connected to one side of the flange torque sensor, a flange motor side coupling is connected to the other side of the flange torque sensor, the flange transmission-shaft side coupling is connected with a transmission-shaft motor side coupling, a motor main-shaft coupling is connected with the flange motor side coupling, and an encoder is connected on an output shaft of the dynamometer motor. The invention also discloses a dual-purpose method of the fixed-motor dual-purpose dynamometer for engine transient and dynamic tests. The fixed-motor dual-purpose dynamometer for engine transient and dynamic tests and the dual-purpose method thereof are convenient to achieve, low in cost, convenient to install and use, complete in function, high in work reliability and work stability and convenient to apply and popularize.

Description

technical field [0001] The invention belongs to the technical field of engine testing, and in particular relates to a dual-purpose dynamometer for a fixed-motor type engine transient dynamic test and a dual-purpose method thereof. Background technique [0002] The dynamometer is a device used to measure parameters such as the torque and speed of the engine, electric motor, etc. It is an indispensable test equipment in the engine development test. Traditional dynamometers are only used to measure general parameters such as torque and speed, and can only test the parameters of the engine itself, and are generally single-mode (usually transient or steady-state) test dynamometers. With the development of technology and the need to shorten the development cycle, on the one hand, it is necessary to test the transient and steady-state performance of the engine; performance (vehicle speed, acceleration performance, etc.), because the traditional dynamometer cannot accurately simula...

AI Technical Summary

Problems solved by technology

Traditional dynamometers are only used to measure general parameters such as torque and speed, and can only test the parameters of the engine itself, and are generally single-mode (usually transient or steady-state) test dynamometers

With the development of technology and the need to shorten the development cycle, on the one hand, it is necessary to test the transient and steady-state performance of the engine; performance (vehicle speed, acceleration performance, etc.), because the traditional dynamometer cannot accurately simulate the inertia of the vehicle on the bench, the traditional dynamometer cannot meet this requirement, and the dynamic simulation dynamometer cannot be very good engine transient performance test

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