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General and safety testsMechanical strength of controller casing Sealing of cooling circuit Water resistance of cooling circuit Cold state DC resistance of stator winding Airtightness test Insulation resistance Voltage resistance Safe grounding Over-speed test Active discharge time Passive discharge time Protective function -
Electric load testVoltage range of DC power supply Long-term overvoltage test Short-term overvoltage test Superimposed AC voltage Slow drop and rise of power supply voltage Instantaneous drop of supply voltage Reset characteristic Reverse voltage test Single-line disconnection Multi-line disconnection Signal short-circuit test -
Performance testOperating voltage range Torque-speed characteristic Temperature rise Peak torque and power Continuous torque and power Locked-rotor torque Maximum operating speed No-load back electromotive force Efficiency and high efficiency zone Speed controller accuracy Torque control accuracy Speed response time Torque response time Continuous operating current of controller Short time operating current of controller Maximum operating current of controller Feed characteristics -
Environmental reliability testHigh- and low-temperature storage High- and low-temperature operation Temperature cycling Temperature shock Damp heat cycle Constant damp heat Temperature gradient Frequency sweep vibration Random vibration Mechanical shock Salt spray test Protection class IP67/IP68/IPX9K Reliability and durability test -
Other testsEMC NVH
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Introduction to production line and workshop
Our production line is a plane circulation type automated assembly line, and Kilews electric screwdrivers are used to collect process torque data, etc.
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Test bench
Rated power: ≤60kW
Peak power: ≤120kW
Peak time: ≤60S
Test time: 8-10min
Torque range: ≤500N·m
Speed range: ≤12,000rpm
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Circuit board aging room
Operating temperature: room temperature ~ 110°C
Heating power: 54kW
Temperature fluctuation: blasting
Power: 0.75kW
Temperature control mode: intelligent control
Test time: 48h
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Leakage detector
Test item: water channel airtightness detection
Test item: complete-unit airtightness detection
Test time: 2-3min
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Functional testing cabinet
Test item: rotary transformer test
Test item: IO test
Test item: voltage and current
Test item: vehicle communication test
Test time: 2-3min
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Dynamometer bench
Rated power: 250kW
Rated torque: 500N·m
Peak speed: 16,000rpm
Power supply: 24V~1,200V
Test chamber temperature: -50°C~150°C
Cooling water temperature: 10°C~90°C
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Insulation and voltage resistance tester
Resistance test: 20mΩ-20kΩ
Test speed: 2.5-10 times/second
Accuracy: ± 0.1% + 2
Display mode: resistance value or percentage
Test time: 1min