Test bench and mounting method and testing method thereof

Abstract

The invention relates to a test bench and a mounting method and a testing method thereof. The test bench is used for a four-wheel-drive strong-mixing power assembly system test and comprises an engine and controller thereof, a driving motor and controller thereof, speed shifting mechanisms, an entire vehicle controller and dynamometers, wherein the speed shifting mechanisms comprise a first speed shifting mechanism and a second speed shifting mechanism; the dynamometers comprise a front-drive dynamometer and a rear-drive dynamometer; the engine is connected with the front-drive dynamometer through the first speed shifting mechanism; the driving motor is connected with the rear-drive dynamometer through the second speed shifting mechanism; the entire vehicle controller is used for receiving a signal from the outside and transmitting a generation torque request and a driving torque demand to the driving motor controller and the engine controller according to the entire vehicle control strategy; the engine controller is in controlled connection with the engine; and the driving motor controller is in controlled connection with the driving motor.

Description

Technical field

[0001] The invention relates to a four-wheel drive strong hybrid power assembly system test bench scheme, in particular to a test bench and an installation method and a test method thereof. Background technique

[0002] With the continuous improvement of new energy policies, the industrialization of new energy vehicles in my country has accelerated. However, mileage restrictions and high battery costs have been the main obstacles to the popularization of electric vehicles. The four-wheel drive hybrid vehicle is driven by a combination of engine and auxiliary motor for the front drive, and the rear drive is driven by the drive motor, and the battery stores energy. During the operation of the vehicle, it can be driven by the front drive alone, the rear drive alone, and the four-wheel drive according to different working conditions. Mode operation. Therefore, the powertrain system test bench needs to change the driving mode, energy supply mode, mechanical connectio...

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