New energy vehicle power test system

Abstract

The invention discloses a power testing system for a complete machine of a new energy vehicle, comprising a workbench. A lift frame capable of driving the new energy vehicle to move along the height is arranged on the workbench. The workbench corresponds to the four wheel hubs of the new energy vehicle. Four attitude frames that can move radially and / or axially, the attitude frame is provided with a rotating head that can adjust the angle of pitching and radial fine-tuning, and one end of the rotating head is provided with a detachable connection with the wheel hub of the new energy vehicle after lifting The other end is provided with a transmission shaft connected with the power device in the dynamometer. The power device can drive the wheel hub of the new energy vehicle to rotate through the rotating shaft; battery simulation system, lift control system, road simulation system, information acquisition system and The dynamometers are respectively electrically connected with the overall control system, and the overall control system generates control signals for control; the battery simulation system is connected to drive the hub of the new energy vehicle to rotate, and the rotating head changes with the attitude of the hub of the new energy vehicle.

Description

technical field [0001] The invention relates to the technical field of new energy vehicle power testing, in particular to a new energy vehicle power testing system. Background technique [0002] A new energy vehicle is a vehicle that uses a single battery as the energy storage power source. It uses the battery as the energy storage power source to provide electrical energy to the motor through the battery to drive the motor to run, thereby driving the car. New energy vehicles use electricity as power, which avoids the exhaust gas pollution caused by the use of gasoline as power. It saves energy and greatly reduces the pollution to the environment. It has become impossible to complete various DV verifications and reliability tests for the newly developed electric drive power assembly of new energy vehicles in the test bench to simulate the whole vehicle test. missing method. [0003] The electric drive power assembly pair drag test bench is mainly used to complete the relev...

AI Technical Summary

Problems solved by technology

[0005] Its disadvantages are: 1. Two axial dynamometers are used to tow each other, and the powertrain under test is connected through a rigid half shaft. It is difficult to debug and align the bench, and installation is troublesome; 2. New energy vehicles are powered by batteries. If the new energy vehicle cannot be systematically tested, it may be extremely dangerous when used

For example, the problem of battery combustion or even explosion; 3. The traditional load test device for new energy vehicle chassis cannot satisfy the simulation of complex operating conditions and complex road conditions

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