Combined test device and test method for performance of new energy automobile motor and gearbox
A new energy vehicle and comprehensive test technology, which is applied in the field of new energy vehicle detection to achieve the effects of saving electric energy, wide adjustment range and wide load adjustment range
Pending Publication Date: 2019-12-06
JIANGSU OCPT INST
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AI Technical Summary
Problems solved by technology
[0003] In order to solve the problems existing in the prior art, the present invention provides a new energy vehicle motor and gearbox performance comprehensive test device and test method, which adopts the energy internal circulation mode, under the condition of saving electric energy and not polluting the mains grid; Stepless speed regulation and stepless loading during the test of electric motor and gearbox of new energy vehicles
Method used
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Embodiment Construction
[0025] In order to further understand the content of the present invention, the present invention will be described in detail below in conjunction with specific examples.
[0026] Such as figure 1 As shown, according to an embodiment of the new energy vehicle motor and gearbox performance comprehensive test device provided by the present invention, it includes a charger 1, an inverter 2, a motor drive frequency converter 5, a new energy vehicle connected in sequence and forming a closed loop. Electric motor 6, gear box 7 and generator 4, generator 4 is connected with charger 1, and the alternating current that generator 4 sends is converted into direct current by charger 1, and the input terminal of described charger 1 is respectively connected municipal power supply 14 and generator 4, the lithium battery 3 is connected in parallel between the charger 1 and the inverter 2, the municipal power supply 14 charges the lithium battery 3 through the charger 1, and the direct curren...
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The invention relates to a combined test device and test method for performance of a new energy automobile motor and a gearbox. The combined test device comprises a charger, an inverter, a motor driving frequency converter, the new energy automobile motor, the gearbox and a power generator which are sequentially connected and form a closed loop, wherein an input end of the charger is connected with a mains supply and the power generator, a lithium battery is connected in parallel between the charger and the inverter, the mains supply is used for charging the lithium battery by the charger, power is supplied to the inverter jointly by direct currents output from the charger and the lithium battery, so that the inverter is used as a power supply to supply power to the motor driving frequencyconverter according to a set power frequency. An energy internal circulation mode is employed, stepless speed regulation and stepless loading during the test process of the new energy automobile motor and the gearbox can be achieved under the conditions that electric energy is saved and a mains supply grid is not polluted.
Description
technical field [0001] The invention relates to the technical field of new energy vehicle detection, in particular to a new energy vehicle motor and gearbox performance comprehensive test device and test method. Background technique [0002] New energy vehicle motors and gearboxes need to perform performance tests at various speed points. The existing technology uses variable frequency motors to drive new energy vehicle motors and gearboxes. The gearbox drives the generator to generate electricity, and the output power of the generator is connected to loads such as resistance. It is mainly necessary to adjust the power of the resistor to adjust the loading power of the entire system, which cannot truly realize stepless speed regulation and stepless loading during the test process. The electricity generated by the generator is consumed through the resistance, which is a waste of energy; taking the 30KW motor of an electric vehicle as an example, about 30 kWh of electricity wa...
Claims
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Patent Timeline
Login to View More IPC IPC(8): G01R31/34G01M13/02G01M13/021G01M13/025G01M13/027G01M17/007
CPCG01R31/343G01M13/02G01M13/021G01M13/025G01M13/027G01M17/007
Inventor 何海军
Owner JIANGSU OCPT INST