1. Product category and parameters

·Product Type: Longitudinal Hybrid Transmission (New Energy Vehicle Transmission System)

·Speed range: Maximum working speed P2 motor 9000 rpm

·Torque parameters:

The maximum input torque of the motor is 400 Nm

Output loading torque of 1000 Nm

·Voltage range: High voltage DC 430V-850V

1. Main functions

·Basic performance testing: including gear shifting, hydraulic system pressure detection (0-15 Bar), high and low voltage circuit docking testing

·Load and NVH testing: Input/output torque loading is achieved through dual dynamometers, and integrated vibration sensors and microphones are used for noise and vibration analysis

·Cooling and cleaning treatment: circulating filtration system (three-stage oil filtration), coolant circulation control (7 ℃ -14 ℃), residual liquid cleaning at the water blowing station

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Dynamometer parameters

|Type | Brand | Model (top 7 digits) | Torque Range | Speed Range | Accuracy|

|------------|----------|---------------|----------|-----------|------------|

|Pre test driver | Siemens | 1PH8186 | 200 Nm | ≤ 5000 rpm | ± 0.05% F.S|

|Final test main drive | Siemens | 1PH8186 | 500 Nm | ≤ 5000 rpm | ± 0.05% F.S|

|Final test load | Siemens | 1PH8186 | 1000 Nm | ≤ 5000 rpm | ± 0.05% F.S|

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Capacity and rhythm

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·Annual production capacity: 100000 units (dual shift system, 250 days/year)

·Rhythm requirements:

The overall line mobility rate is ≥ 90%

Theoretical cycle time of 162 seconds (including mechanical action time ≤ 45 seconds)

Change time * * ≤ 15 minutes**

1. Characteristics of core equipment

(1) Flexible design

·Support co production of variant products, reserve design change space for shell, spline, plug-in interface, etc

·Adapter quick change structure (clamping arm/spline sleeve replacement time<5 minutes)

·The servo positioning system has an accuracy of ± 0.05mm and is compatible with positioning multiple specifications of products

(2) Security and Automation

·Mechanical and electrical safety protection: safety grating+emergency stop system+shaft system configuration safety clutch

·Fully automatic docking: The high-voltage probe automatically docks with the tested part, with temperature monitoring and error prevention detection. The testing tray does not require the configuration of a high-voltage wiring harness for testing

·Dual servo drive: independent control of input/output shafts, supporting dynamic adjustment of torque/speed

(3) Data Management and Traceability

·Dual machine hot backup server, real-time data synchronization and cloud backup, data upload to the vehicle factory

·RFID full process traceability, test data binding box number storage for 10 years

·NVH data integration: Discom TAS28 system implements vibration spectrum analysis, automatically associates abnormal data with process parameters